WM8978G资料
数据手册中文版
14位, 165M SPA（采样率）DAC（数模转换器）特性：●单电源供电+5V或+3V●高SFDR （无杂散动态范围）: 在100MSPS 64dBc时20MHz输出●低干扰: 3PV -S●低功耗: 170MW （+5 V时）应用●通讯传输通道WLL , 蜂窝基站数字微波链路电缆调制解调器●波形产生直接数字频率合成器（DDS ）任意波形发生器（ARB ）●医疗/超声●高速仪表和控制●视频, 数字电视说明：DAC904是一款高速数模转换器, 14位分辨率, 引脚兼容DAC908、DAC900、DAC902, 分别提供8-, 10-, 12-位分辨率选择。
该系列DAC支持的所有型号更新率超过165MSPS, 具有优良的动态性能。
DAC904先进分割架构的优化为单音和多频音信号提供高无杂散动态范围（SFDR）, 特别是用于通信系统的发送信号电路时。
DAC904具有高阻抗（200KΩ）的电流输出, 标称范围为20mA和一个最多为1.25V的输出。
差分输出允许两个差分或单端模拟信号的接口。
电流输出的匹配保证在差分结构中杰出的动态性能, 它可以与变压器配合使用。
运用一个小的几何CMOS工艺, 单片DAC904可以用在+2.7 V至+5.5 V宽的单电源范围内操作。
其低功耗特性允许它使用在便携式和电池供电系统情况下。
可通过减少输出电流与调整满量程选项实现进一步优化。
DAC904不断运转时, 掉电模式导致其待机功率仅为为45mW 。
DAC904带有一个集成的1.24V带隙基准和边沿触发输入锁存器, 提供完整的转换器解决方案。
+3 V和+5 V CMOS逻辑系列都可以接口到DAC904 。
DAC904的参考结构允许使用芯片上的参考, 或施加外部参考。
通过一个外部电阻, 满量程输出电流可以调整在2 - 20mA, 并保持其指定的动态性能。
DAC904采用SO -28和TSSOP -28封装。
绝对最大额定值+VA到AGND（模拟信号地）......-0.3V至+6V+VD到DGND（数字信号地）......-0.3V到+6VAGND到DGND......-0.3V到+0.3V+VA 到+VD......-6V到+6VCLK, PD到DGND......-0.3V到VD+0.3VD0-D13到DGND......-0.3V到VD+0.3VIOUT, I 到AGND......-1V到VA+0.3VBW,BYP到AGND......-0.3V到VA+0.3VREFIN ,FSA到AGND......-0.3V到VA+0.3VINT/EXT到AGND......-0.3V到VA+0.3V结温度. . . . . . . ＋１５０℃存储器温度. . . . . . ＋１２５℃防静电敏感度这种集成的电路可以被ESD（静电释放）损坏。
WM_W800_入门手册说明书
WM_W800_入门手册V1.2北京联盛德微电子有限责任公司(winner micro)地址：北京市海淀区阜成路67号银都大厦1802电话：+86-10-62161900公司网址：文档修改记录版本修订时间修订记录作者审核V0.12019/9/25[C]创建文档CuiycV0.22020/6/12增加cygwin编译环境CuiycV0.32020/7/8统一字体CuiycV1.02020/8/4添加硬件开发板CuiycV1.12020/11/5更新高速接口介绍RayCuiycV1.22021/2/4推荐使用IDE为CDK，不再维护CDS的工程目录文档修改记录 (2)目录 (3)1概述 (5)2准备工作 (5)3w800开发板简介 (6)4w800编译环境搭建 (7)4.1w800工具链 (7)4.2开发环境安装 (7)4.2.1Windows (7)4.2.2Linux (9)4.2.3Mac OS (10)5SDK工程获取 (10)6SDK工程编译 (10)6.1Windows (10)6.1.1Ubuntu虚拟机 (10)6.2Linux (11)6.3mac os (11)7固件烧录 (11)7.1Window下的操作步骤 (11)7.2Linux下升级步骤 (15)7.3Mac os下升级步骤 (15)8串口调试 (15)9w800 sdk如何开始编写用户程序 (15)9.1用户入口 (15)9.2demo如何使用 (16)9.3at指令如何使用 (16)1概述指导如何用户搭建w800硬件开发的软件环境，通过示例工程展示如何编译、下载固件到w800开发板等操作步骤。
该手册基于W800的ARDUINO开发板进行介绍及示例的升级运行。
w800是一款基于XT804内核SoC，支持功能：⚫ 2.4G Wi-Fi⚫蓝牙⚫内置多种数字接口（QFlash，外扩PSRAM，UART，GPIO，I²C，PWM，I²S，7816，SDIO，HSPI，TouchSensor）⚫支持多种硬件加解密算法（RC4，DES，3DES，AES，RSA，MD5，SHA1）⚫内置安全功能2准备工作硬件：⚫w800开发板⚫USB数据线（Micro USB）⚫PC（Windows、linux或Mac OS）软件：⚫工具链，用于编译w800代码⚫编译工具⚫w800 sdk⚫串口工具（支持xmodem协议）⚫代码编辑器3w800开发板简介W800 Arduino开发板，提供了如下接口：⚫I2C&I2S接口⚫Uart0&SWD调试接口⚫SPI&Uart1通信接口⚫PWM接口⚫SIM 接口⚫GPIO⚫Micro USB 接口用户通过Micro USB口与上位机相连，通过UART0口进行固件烧录。
M98 phone Manual说明书
手機待機界面 . . . . . . . . . . . . . 18
手機界面簡介 . . . . . . . . . . . . 19
手機捷徑使用説明 . . . . . . . . . . . 20
開啓捷徑功能 . . . . . . . . . . . . . 20 新增捷徑 . . . . . . . . . . . . . . 21
WEB 瀏覽器. . . . . . . . . . . . . 74
WEB 瀏覽器設定 . . . . . . . . . . . . 74 訪問網頁 . . . . . . . . . . . . . . 75 查看歷史記錄 . . . . . . . . . . . . . 75
4 影音庫應用程式
3 通訊應用程式
37
啓用電話功能 . . . . . . . . . . . . 37
撥打電話. . . . . . . . . . . . . . .37
接聽 / 拒聽電話 . . . . . . . . . . . . .41
快捷功能鍵 . . . . . . . . . . . . . .42
新增錄音記錄 . . . . . . . . . . . . . 91
播放方式 . . . . . . . . . . . . . . 92
播放錄音片段 . . . . . . . . . . . . . 92
複製 / 移動記錄 . . . . . . . . . . . . . 93
5 個人信息管理應用程式
歌曲管理 . . . . . . . . . . . . . . 86
設定背景音樂播放 . . . . . . . . . . . . 87
影片播放器 . . . . . . . . . . . . . 88
WM8978中文资料
描述 ........................................................................ 3 产品特征 .................................................................... 3
1
输入限幅器/电平自动控制（ALC）..................................... 25 ALC 芯片保护 .......................................................29 噪声门............................................................. 29 输出信号线路....................................................... 30 数字重放（DAC）线路................................................ 30 数字 Hi-Fi DAC 音量（增益）控制.....................................31 DAC 5 路均衡器 .....................................................32 DAC 3D 放大 ........................................................32 音量推动........................................................... 32 5 路图表均衡器 .....................................................34 3D 立体声放大 ......................................................36 模拟输出........................................................... 36 左和右通道混合器................................................... 36 耳机输出（LOUT1 和 ROUT1）..........................................39 扬声器输出（LOUT2 和 ROUT2）........................................41 零交叉间歇时间..................................................... 44 OUT3/OUT4 混合和输出 ...............................................44 输出使能........................................................... 48 过热保护........................................................... 48 未使用的模拟输入/输出.............................................. 48 数字音频接口....................................................... 51 主属和从属操作模式................................................. 51 音频数据模式....................................................... 51 音频接口控制....................................................... 54 环回............................................................... 54 压缩............................................................... 54 音频采样率......................................................... 55 主时钟和锁相环（PLL）.............................................. 56 通用的输入/输出.................................................... 57 输出开关选择（插座检测）........................................... 58 控制接口........................................................... 59 控制模式选择和 2 线模式地址.........................................59 3 线串行控制模式 ...................................................59 2 线串行控制模式 ...................................................59 芯片复位........................................................... 60 电源............................................................... 60 推荐的上电/断电顺序................................................ 60 电源管理........................................................... 61 通过减少过采样率节省电能........................................... 61 VMID............................................................... 61 BIASEN............................................................. 61 源电流估算......................................................... 61
高通MSM8909核心板XY8901_硬件设计手册_V1.1
n8974a技术规格书
n8974a技术规格书1. 总览N8974A 是一款先进的高性能仪器，用于频谱分析和信号监测。
它采用了先进的数字信号处理技术，能够在宽频带范围内对复杂的信号进行分析，并提供高精度的测量数据。
该仪器适用于电信、无线通信、航空航天等领域，并具有广泛的应用价值。
2. 技术参数2.1 频率范围：100kHz-26.5GHz2.2 频率分辨率：1Hz2.3 动态范围：> 140dB2.4 相位噪声：-100dBc/Hz @ 10kHz offset2.5 输入阻抗：50Ω2.6 输入功率：最大+30dBm2.7 接口：USB、LAN3. 主要特点3.1 宽频带覆盖：N8974A 提供了从100kHz到26.5GHz的频率覆盖范围，能够对各种常用的无线信号进行全面的监测和分析。
3.2 高精度测量：采用了先进的数字信号处理技术，具有极高的动态范围和频率分辨率，能够提供高精度的测量数据。
3.3 自动化测试：支持远程控制和自动化测试，可以与测试系统集成，提高测试效率和准确性。
3.4 灵活的接口：具有标准的USB和LAN接口，可以方便地连接到计算机和网络，实现远程控制和数据传输。
3.5 友好的用户界面：采用了直观的操作界面和丰富的功能菜单，操作简便，易于上手。
4. 应用领域N8974A 在以下领域具有广泛的应用价值：4.1 电信领域：用于对移动通信、卫星通信等无线信号进行监测和分析，验证系统性能和信号质量。
4.2 无线通信领域：用于对WLAN、蓝牙、ZigBee等无线通信标准的信号进行测试和优化。
4.3 航空航天领域：用于航空雷达、导航系统等信号的监测和分析，确保系统的正常运行和安全性。
4.4 科研领域：用于科研机构和大学的实验室，支持各种频谱分析和无线信号研究。
5. 总结N8974A 是一款高性能的频谱分析仪，具有宽频带覆盖、高精度测量、自动化测试、灵活的接口和友好的用户界面等特点，适用于电信、无线通信、航空航天等领域，并具有广泛的应用价值。
WM8974_07资料
wWM8974Mono CODEC with Speaker DriverWOLFSON MICROELECTRONICS plc Production Data, Rev 4.2 March 2007DESCRIPTIONThe WM8974 is a low power, high quality mono CODEC designed for portable applications such as Digital Still Camera or Digital Voice Recorder.The device integrates support for a differential or single ended mic, and includes drivers for speakers or headphone, and mono line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required.Advanced Sigma Delta Converters are used along with digital decimation and interpolation filters to give high quality audio at sample rates from 8 to 48ks/s. Additional digital filtering options are available in the ADC path, to cater for application filtering such as ‘wind noise reduction’, plus an advanced mixed signal ALC function with noise gate is provided. The digital audio interface supports A-law and µ-law companding. An on-chip PLL is provided to generate the required Master Clock from an external reference clock. The PLL clock can also be output if required elsewhere in the system.The WM8974 operates at supply voltages from 2.5 to 3.6V, although the digital supplies can operate at voltages down to 1.71V to save power. The speaker and mono outputs use a separate supply of up to 5V which enables increased output power if required. Different sections of the chip can also be powered down under software control by way of the selectable two or three wire control interface.WM8974 is supplied in a very small 4x4mm QFN package, offering high levels of functionality in minimum board area, with high thermal performance.FEATURES• Mono CODEC:• Audio sample rates:8, 11.025, 16, 22.05, 24, 32, 44.1, 48kHz • DAC SNR 98dB, THD -84dB (‘A’-weighted @ 8 – 48ks/s) • ADC SNR 94dB, THD -83dB (‘A’-weighted @ 8 – 48ks/s) • On-chip Headphone/Speaker Driver with ‘cap-less’ connect - 40mW output power into 16Ω / 3.3V SPKVDD - BTL speaker drive 0.9W into 8Ω / 5V SPKVDD • Additional MONO Line output• Multiple analog or ‘Aux’ inputs, plus analog bypass path • Mic Preamps:•Differential or single end Microphone Interface - Programmable preamp gain- Psuedo differential inputs with common mode rejection - Programmable ALC / Noise Gate in ADC path •Low-noise bias supplied for electret microphonesOTHER FEATURES• 5 band EQ (record or playback path) • Digital Playback Limiter• Programmable ADC High Pass Filter (wind noise reduction) • Programmable ADC Notch Filter • On-chip PLL• Low power, low voltage- 2.5V to 3.6V (digital: 1.71V to 3.6V)- power consumption <10mA all-on 48ks/s mode • 4x4x0.9mm 24 lead QFN packageAPPLICATIONS• Digital Still Camera Audio Codec• Wireless VoIP and other communication device handsets / headsets• Portable audio recorder•General Purpose low power audio CODECWM8974Production DataTABLE OF CONTENTS DESCRIPTION (1)FEATURES (1)APPLICATIONS (1)TABLE OF CONTENTS (2)PIN CONFIGURATION (3)ORDERING INFORMATION (3)PIN DESCRIPTION (4)ABSOLUTE MAXIMUM RATINGS (5)RECOMMENDED OPERATING CONDITIONS (5)ELECTRICAL CHARACTERISTICS (6)TERMINOLOGY (8)SIGNAL TIMING REQUIREMENTS (9)SYSTEM CLOCK TIMING (9)AUDIO INTERFACE TIMING – MASTER MODE (9)AUDIO INTERFACE TIMING – SLAVE MODE (10)CONTROL INTERFACE TIMING – 3-WIRE MODE (11)CONTROL INTERFACE TIMING – 2-WIRE MODE (12)DEVICE DESCRIPTION (13)INTRODUCTION (13)INPUT SIGNAL PATH (14)ANALOGUE TO DIGITAL CONVERTER (ADC) (19)INPUT LIMITER / AUTOMATIC LEVEL CONTROL (ALC) (23)OUTPUT SIGNAL PATH (35)ANALOGUE OUTPUTS (42)OUTPUT SWITCH (47)DIGITAL AUDIO INTERFACES (49)AUDIO SAMPLE RATES (54)MASTER CLOCK AND PHASE LOCKED LOOP (PLL) (55)GENERAL PURPOSE INPUT/OUTPUT (57)CONTROL INTERFACE (57)RESETTING THE CHIP (58)POWER SUPPLIES (58)POWER MANAGEMENT (63)REGISTER MAP (65)REGISTER BITS BY ADDRESS (66)DIGITAL FILTER CHARACTERISTICS (77)TERMINOLOGY (77)DAC FILTER RESPONSES (78)ADC FILTER RESPONSES (78)DE-EMPHASIS FILTER RESPONSES (79)HIGHPASS FILTER (80)5-BAND EQUALISER (81)APPLICATIONS INFORMATION (85)RECOMMENDED EXTERNAL COMPONENTS (85)PACKAGE DIAGRAM (86)IMPORTANT NOTICE (87)ADDRESS: (87)Production Data WM8974 PIN CONFIGURATIONTOPVIEWORDERING INFORMATIONORDER CODE TEMPERATURERANGE PACKAGE MOISTURESENSITIVITYLEVELPACKAGE BODYTEMPERATUREWM8974GEFL/V -25°C to +85°C 24-lead QFN (4x4x0.9mm)(Pb-free)MSL3 260o CWM8974GEFL/RV -25°C to +85°C 24-lead QFN (4x4x0.9mm)(Pb-free, tape and reel)MSL3 260o C Note:Reel Quantity = 3,500WM8974Production Data PIN DESCRIPTIONPIN NO NAME TYPE DESCRIPTION1 MICBIAS Analogue Output Microphone bias2 AVDD Supply Analogue supply (feeds ADC and DAC)3 AGND Supply Analogue ground (feeds ADC and DAC)4 DCVDD Supply Digital core supply5 DBVDD Supply Digital buffer (input/output) supplyground6 DGND Supply Digital7 ADCDAT Digital Output ADC digital audio data output8 DACDAT Digital Input DAC digital audio data input9 FRAME Digital Input / Output DAC and ADC sample rate clock or frame synch10 BCLK Digital Input / Output Digital audio port clock11 MCLK Digital Input Master clock input12 CSB/GPIO Digital Input / Output 3-Wire MPU chip select or general purpose input/output pin.13 SCLK Digital Input 3-Wire MPU clock Input / 2-Wire MPU Clock Input14 SDIN Digital Input / Output 3-Wire MPU data Input / 2-Wire MPU Data Input15 MODE Digital Input Control interface mode selection pin.Analogue Output Mono output16 MONOOUTAnalogue Output Speaker output positive17 SPKOUTPSupply Speaker ground (feeds speaker and mono output amps only)18 SPKGNDAnalogue Output Speaker output Negative19 SPKOUTNSupply Speaker supply (feeds speaker and mono output amps only)20 SPKVDDAnalogue Input Auxiliary analogue input21 AUXReference Decoupling for midrail reference voltage22 VMIDAnalogue Input Microphone negative input23 MICNAnalogue Input Microphone positive input (common mode)24 MICPNote:It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.Production DataWM8974ABSOLUTE MAXIMUM RATINGSAbsolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuouslyoperating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified.ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device.Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage conditions prior to surface mount assembly. These levels are:MSL1 = unlimited floor life at <30°C / 85% Relative Humidity. Not normally stored in moisture barrier bag. MSL2 = out of bag storage for 1 year at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag. MSL3 = out of bag storage for 168 hours at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag. The Moisture Sensitivity Level for each package type is specified in Ordering Information. CONDITION MIN MAXDBVDD, DCVDD, AVDD supply voltages -0.3V +4.2 SPKVDD supply voltage -0.3V +7V Voltage range digital inputs DGND -0.3V DVDD +0.3V Voltage range analogue inputs AGND -0.3VAVDD +0.3VOperating temperature range, T A -25°C +85°CStorage temperature prior to soldering 30°C max / 85% RH max Storage temperature after soldering -65°C +150°CNotes 1. Analogue and digital grounds must always be within 0.3V of each other. 2. All digital and analogue supplies are completely independent from each other.RECOMMENDED OPERATING CONDITIONSPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITDigital supply range (Core) DCVDD 1.71 3.6 VDigital supply range (Buffer) DBVDD 1.71 3.6 V Analogue supplies range AVDD 2.5 3.6 VSpeaker supply SPKVDD 2.5 5.5 VGround DGND,AGND,SPKGNDVNotes 1. When using PLL, DCVDD must be 1.9V or higher. 2. AVDD must be ≥ DCVDD.3. DBVDD must be ≥ DCVDD.4. In non-boosted mode, SPKVDD must be ≥ AVDD, if boosted SPKVDD must be ≥ 1.5x AVDD.5.When using PLL, DCVDD must be ≥ 1.9V.WM8974Production DataELECTRICAL CHARACTERISTICSTest ConditionsDCVDD = 1.8V, AVDD = DBVDD = 3.3V, SPKVDD = 3.3V, T A = +25o C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Microphone Inputs (MICN, MICP) Full-scale Input Signal Level (Note 1) – note this changes with AVDDV INFSPGABOOST = 0dB INPPGAVOL = 0dB1.0 0 VrmsdBVMic PGA equivalent input noise At 35.25dBgain 150 uVInput resistance R MICIN Gain set to 35.25dB 1.6 k Ω Input resistance R MICIN Gain set to 0dB 47 k Ω Input resistance R MICIN Gain set to -12dB 75 k Ω Input resistance R MICIP MICP2INPPGA = 1 94 k Ω Input resistance R MICIP MICP2INPPGA = 094k ΩInput Capacitance C MICIN 10 pF MIC Input Programmable Gain Amplifier (PGA)Programmable Gain-12 35.25 dBProgrammable Gain Step Size Guaranteed monotonic0.75dBMute Attenuation 108 dB Selectable Input Gain Boost (0/+20dB)Gain Boost 0 20 dB Automatic Level Control (ALC)/Limiter – ADC onlyTarget Record Level -28.5 -6 dB Programmable Gain-12 35.25 dBProgrammable Gain Step Size Guaranteed Monotonic0.75dB Gain Hold Time (Note 2)t HOLD MCLK=12.288MHz (Note 4) 0, 2.67, 5.33, 10.67, … , 43691 (time doubles with each step) ms ALCMODE=0 (ALC), MCLK=12.288MHz(Note 4) 3.3, 6.6, 13.1, … , 3360 (time doubles with each step) Gain Ramp-Up (Decay) Time (Note 3)t DCYALCMODE=1 (limiter), MCLK=12.288MHz(Note 4)0.73, 1.45, 2.91, … , 744 (time doubles with each step) msALCMODE=0 (ALC), MCLK=12.288MHz(Note 4) 0.83, 1.66, 3.33, … , 852 (time doubles with each step) Gain Ramp-Down (Attack) Time (Note 3)t ATKALCMODE=1 (limiter), MCLK=12.288MHz(Note 4)0.18, 0.36, 0.73, … , 186 (time doubles with each step)msAnalogue to Digital Converter (ADC) Signal to Noise Ratio (Note 5) SNR A-weighted,0dB PGA gain 85 94 dB Total Harmonic Distortion (Note 6)THD-1dBFS input, 0dB PGA gain-75 -83 dBAuxilliary Analogue Input (AUX) Full-scale Input Signal Level (0dB) – note this changes with AVDD V INFS 1.0 0 VrmsdBVInput Resistance R AUXIN AUXMODE =0 20 k ΩInput Capacitance C AUXIN10 pFProduction DataWM8974Test ConditionsDCVDD = 1.8V, AVDD = DBVDD = 3.3V, SPKVDD = 3.3V, T A = +25o C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital to Analogue Converter (DAC) to MONO output (all data measured with 10k Ω / 50pF load) Signal to Noise Ratio (Note 5) SNR A-weighted 90 98 dB Total Harmonic Distortion + Noise (Note 6)THD+N R L = 10 k Ωfull-scale signal-84 dBMONOBOOST =0 AVDD/3.30dB Full Scale output voltage (Note 9)MONOBOOST=11.5x(AVDD/3.3)V RMS Speaker Output PGA Programmable Gain-57 6 dBProgrammable Gain Step SizeGuaranteed monotonic1dBBTL Speaker Output (SPKOUTP, SPKOUTN with 8Ω bridge tied load)Output PowerP O Output power is very closely correlated with THD; see belowP O =180mW, R L = 8Ω,SPKVDD=3.3V 0.03 -70 % dB P O =400mW, R L = 8Ω,SPKVDD=3.3V 5.0 -26 % dB P O =360mW, R L = 8Ω,SPKVDD=5V 0.02 -75 % dB Total Harmonic Distortion + Noise (Note 6)THD+NP O =800mW, R L = 8Ω,SPKVDD=5V0.06 -65 % dB SPKVDD=3.3V,R L = 8Ω 90 101 dB Signal to Noise RatioSNRSPKVDD=5V, R L = 8Ω102 dBPower Supply Rejection Ratio50 dB‘Headphone’ output (SPKOUTP, SPKOUTN with resistive load to ground)Signal to Noise RatioSNR 100 dB Total Harmonic Distortion + Noise (Note 6) THD+N Po =20mW, R L = 16Ω,SPKVDD=3.3V0.02 -74 %dBPo=20mW, R L = 32Ω, SPKVDD=3.3V0.017 - 75 % dB Microphone Bias Bias Voltage (MBVSEL=0) V MICBIAS0.9*AVDDVBias Voltage (MBVSEL=1) V MICBIAS 0.65*AVDD V Bias Current Source I MICBIAS 3 mA Output Noise Voltage Vn1K to 20kHz15nV/√HzDigital Input / Output Input HIGH Level V IH 0.7×DVDD V Input LOW Level V IL 0.3×DVDD VOutput HIGH Level V OH I OL =1mA 0.9×DVDDVOutput LOW LevelV OLI OH -1mA 0.1xDVDD VWM8974Production Data TERMINOLOGY1. MICN input only in single ended microphone configuration. Maximum input signal to MICP without distortion is -3dBV.2. Hold Time is the length of time between a signal detected being too quiet and beginning to ramp up the gain. It doesnot apply to ramping down the gain when the signal is too loud, which happens without a delay.3. Ramp-up and Ramp-Down times are defined as the time it takes for the PGA to change it’s gain by 6dB.4. All hold, ramp-up and ramp-down times scale proportionally with MCLK5. Signal-to-noise ratio (dB) – SNR is a measure of the difference in level between the full scale output and the output withno signal applied. (No Auto-zero or Automute function is employed in achieving these results).6. THD+N (dB) – THD+N is a ratio, of the rms values, of (Noise + Distortion)/Signal.7. The maximum output voltage can be limited by the speaker power supply. If MONOBOOST=1 then SPKVDD shouldbe 1.5xAVDD or higher to prevent clipping taking place in the output stage.Production DataWM8974SIGNAL TIMING REQUIREMENTSSYSTEM CLOCK TIMINGFigure 1 System Clock Timing RequirementsTest ConditionsDCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T A = +25o CPARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT System Clock Timing Information MCLK=SYSCLK (=256fs)81.38ns MCLK cycle time T MCLKYMCLK input to PLL Note 1 20nsMCLK duty cycle T MCLKDS 60:40 40:60Note 1:PLL pre-scaling and PLL N and K values should be set appropriately so that SYSCLK is no greater than 12.288MHz.AUDIO INTERFACE TIMING – MASTER MODEFigure 2 Digital Audio Data Timing – Master Mode (see Control Interface)WM8974Production DataTest ConditionsDCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T A =+25o C, Master Mode, fs=48kHz, MCLK=256fs,24-bit data, unless otherwise stated. PARAMETER SYMBOL MIN TYP MAX UNITAudio Data Input Timing InformationFRAME propagation delay from BCLK falling edge t DL 10 ns ADCDAT propagation delay from BCLK falling edge t DDA 10 ns DACDAT setup time to BCLK rising edge t DST 10 ns DACDAT hold time from BCLK rising edge t DHT 10 nsNote:BCLK period should always be greater than MCLK period.AUDIO INTERFACE TIMING – SLAVE MODEFigure 3 Digital Audio Data Timing – Slave ModeTest ConditionsDCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T A =+25o C, Slave Mode, fs=48kHz, MCLK= 256fs, 24-bit data, unless otherwise stated.PARAMETER SYMBOL MIN TYP MAX UNIT Audio Data Input Timing InformationBCLK cycle time t BCY 160 ns BCLK pulse width high t BCH 64 ns BCLK pulse width lowt BCL 64 ns FRAME set-up time to BCLK rising edge t LRSU 10 ns FRAME hold time from BCLK rising edge t LRH 10 ns DACDAT hold time from BCLK rising edge t DH 10 ns DACDAT set-up time to BCLK rising edge t DS 10 ns ADCDAT propagation delay from BCLK falling edge t DD 20 nsCONTROL INTERFACE TIMING – 3-WIRE MODEFigure 4 Control Interface Timing – 3-Wire Serial Control ModeTest ConditionsDCVDD = 1.8V, DBVDD = AVDD = SPKVDD = 3.3V, DGND = AGND = SPKGND = 0V, T A = +25o C, Slave Mode, fs = 48kHz,MCLK = 256fs, 24-bit data, unless otherwise stated.UNITMAXTYPMINPARAMETER SYMBOLProgram Register Input InformationSCLK rising edge to CSB rising edge t SCS 80 nsSCLK pulse cycle time t SCY 200 nsSCLK pulse width low t SCL 80 nsSCLK pulse width high t SCH 80 nsSDIN to SCLK set-up time t DSU 40 nsSCLK to SDIN hold time t DHO 40 nsCSB pulse width low t CSL 40 nsCSB pulse width high t CSH 40 nsCSB rising to SCLK rising t CSS 40 nsPulse width of spikes that will be suppressed t ps 0 5nsCONTROL INTERFACE TIMING – 2-WIRE MODEFigure 5 Control Interface Timing – 2-Wire Serial Control ModeTest ConditionsDCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T A = +25o C, Slave Mode, fs = 48kHz, MCLK =256fs, 24-bit data, unless otherwise stated.UNITMAX PARAMETER SYMBOLTYPMINProgram Register Input InformationSCLK Frequency 0 526kHzSCLK Low Pulse-Width t1 1.3 usSCLK High Pulse-Width t2 600 nsHold Time (Start Condition) t3 600 nsSetup Time (Start Condition) t4 600 nsData Setup Time t5 100 nsSDIN, SCLK Rise Time t6300nsSDIN, SCLK Fall Time t7300nsSetup Time (Stop Condition) t8 600 nsData Hold Time t9900nsnsPulse width of spikes that will be suppressed t ps 0 5DEVICE DESCRIPTIONINTRODUCTIONThe WM8974 is a low power audio codec combining a high quality mono audio DAC and ADC, withflexible line and microphone input and output processing. Applications for this device include digitalstill cameras with mono audio, record and playback capability, voice recorders, wireless VoIPheadsets and games console accessories.FEATURESThe chip offers great flexibility in use, and so can support many different modes of operation asfollows:MICROPHONE INPUTSTwo microphone inputs are provided, allowing for either a differential microphone input or a singleended microphone to be connected. These inputs have a user programmable gain range of -12dBto +35.25dB using internal resistors. After the input PGA stage comes a boost stage which can adda further 20dB of gain. A microphone bias is output from the chip which can be used to bias themicrophones. The signal routing can be configured to allow manual adjustment of mic levels, or toallow the ALC loop to control the level of mic signal that is transmitted.Total gain through the microphone paths of up to +55.25dB can be selected.PGA AND ALC OPERATIONA programmable gain amplifier is provided in the input path to the ADC. This may be used manuallyor in conjunction with a mixed analogue/digital automatic level control (ALC) which keeps therecording volume constant.AUX INPUTThe device includes a mono input, AUX, that can be used as an input for warning tones (beep) etc.The output from this circuit can be summed into the mono output and/or the speaker output paths,so allowing for mixing of audio with ‘backing music’ etc as required. This path can also be summedinto the input in a flexible fashion, either to the input PGA as a second microphone input or as a lineinput. The configuration of this circuit, with integrated on-chip resistors allows several analoguesignals to be summed into the single AUX input if required.ADCThe mono ADC uses a multi-bit high-order oversampling architecture to deliver optimumperformance with low power consumption. Various sample rates are supported, from the 8ks/s ratetypically used in voice dictation, up to the 48ks/s rate used in high quality audio applications.HI-FI DACThe hi-fi DAC provides high quality audio playback suitable for all portable mono audio typeapplications.DIGITAL FILTERINGAdvanced Sigma Delta Converters are used along with digital decimation and interpolation filters togive high quality audio at sample rates from 8ks/s to 48ks/s.Application specific digital filters are also available which help to reduce the effect of specific noisesources such as ‘wind noise’. The filters include a programmable ADC high pass filter, aprogrammable ADC notch filter and a 5-band equaliser that can be applied to either the ADC or theDAC path in order to improve the overall audio sound from the device.OUTPUT MIXING AND VOLUME ADJUSTFlexible mixing is provided on the outputs of the device; a mixer is provided for the speaker outputs,and an additional mono summer for the mono output. These mixers allow the output of the DAC, theoutput of the ADC volume control and the Auxilliary input to be combined. The output volume canbe adjusted using the integrated digital volume control and there is additional analogue gainadjustment capability on the speaker output.AUDIO INTERFACESThe WM8974 has a standard audio interface, to support the transmission of audio data to and fromthe chip. This interface is a 4 wire standard audio interface which supports a number of audio dataformats including I2S, DSP Mode, MSB-First, left justified and MSB-First, right justified, and canoperate in master or slave modes.CONTROL INTERFACESTo allow full software control over all its features, the WM8974 offers a choice of 2 or 3 wire MPUcontrol interface. It is fully compatible and an ideal partner for a wide range of industry standardmicroprocessors, controllers and DSPs. The selection between 2-wire mode and 3-wire mode isdetermined by the state of the MODE pin. If MODE is high then 3-wire control mode is selected, ifMODE is low then 2-wire control mode is selected.In 2 wire mode, only slave operation is supported, and the address of the device is fixed as 0011010.CLOCKING SCHEMESWM8974 offers the normal audio DAC clocking scheme operation, where 256fs MCLK is provided tothe DAC/ADC.However, a PLL is also included which may be used to generate the internal master clock frequencyin the event that this is not available from the system controller. This PLL uses an input clock,typically the 12MHz USB or ilink clock, to generate high quality audio clocks. If this PLL is notrequired for generation of these clocks, it can be reconfigured to generate alternative clocks whichmay then be output on the CSB/GPIO pin and used elsewhere in the system.POWER CONTROLThe design of the WM8974 has given much attention to power consumption without compromisingperformance. It operates at low supply voltages, and includes the facility to power off any unusedparts of the circuitry under software control, includes standby and power off modes.INPUT SIGNAL PATHThe WM8974 has 3 flexible analogue inputs: two microphone inputs, and an auxiliary input. Theseinputs can be used in a variety of ways. The input signal path before the ADC has a flexible PGAblock which then feeds into a gain boost/mixer stage.MICROPHONE INPUTSThe WM8974 can accommodate a variety of microphone configurations including single ended anddifferential inputs. The inputs through the MICN, MICP and optionally AUX pins are amplifiedthrough the input PGA as shown in Figure 6 .A pseudo differential input is the preferential configuration where the positive terminal of the inputPGA is connected to the MICP input pin by setting MICP2INPPGA=1. The microphone groundshould then be connected to MICN (when MICN2INPPGA=1) or optionally to AUX (whenAUX2INPPGA=1) input pins.Alternatively a single ended microphone can be connected to the MICN input with MICN2INPPGA setto 1. The non-inverting terminal of the input PGA should be connected internally to VMID by settingMICP2INPPGA to 0.In differential mode the larger signal should be input to MICP and the smaller (e.g. noisy groundconnection) should be input to MICN.Figure 6 Microphone Input PGA Circuit (switch positions shown are for differential mic input)REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTIONMICP2INPPGA1Connect input PGA amplifier positive terminal to MICP or VMID.0 = input PGA amplifier positive terminal connected to VMID1 = input PGA amplifier positive terminal connected to MICP through variable resistor string1 MICN2INPPGA 1Connect MICN to input PGA negative terminal. 0=MICN not connected to input PGA1=MICN connected to input PGA amplifier negative terminal.R44Input Control2 AUX2INPPGA 0Select AUX amplifier output as input PGA signal source.0=AUX not connected to input PGA1=AUX connected to input PGA amplifier negative terminal.The input PGA is enabled by the IPPGAEN register bit.REGISTER ADDRESS BIT LABEL DEFAULTDESCRIPTIONR2 PowerManagement 2 2INPPGAENInput microphone PGA enable0 = disabled 1 = enabledINPUT PGA VOLUME CONTROLThe input microphone PGA has a gain range from -12dB to +35.25dB in 0.75dB steps. The gain from the MICN input to the PGA output and from the AUX amplifier to the PGA output are always common and controlled by the register bits INPPGAVOL[5:0]. These register bits also affect the MICP pin when MICP2INPPGA=1.When the Automatic Level Control (ALC) is enabled the input PGA gain is then controlled automatically and the INPPGAVOL bits should not be used. REGISTER ADDRESSBIT LABEL DEFAULTDESCRIPTION5:0 INPPGAVOL010000Input PGA volume 000000 = -12dB 000001 = -11.25db .010000 = 0dB .111111 = 35.25dB6 INPPGAMUTE 0Mute control for input PGA:0=Input PGA not muted, normal operation1=Input PGA muted (and disconnected from the following input BOOST stage).R45 Input PGA volume control7 INPPGAZC 0Input PGA zero cross enable:0=Update gain when gain register changes 1=Update gain on 1st zero cross after gain register write.R32ALC control 18 ALCSEL 0ALC function select:0=ALC off (PGA gain set by INPPGAVOL register bits)1=ALC on (ALC controls PGA gain)Table 1 Input PGA Volume ControlAUXILLIARY INPUTAn auxilliary input circuit (Figure 7) is provided which consists of an amplifier which can be configured either as an inverting buffer for a single input signal or as a mixer/summer for multiple inputs with the use of external resistors. The circuit is enabled by the register bit AUXEN.Figure 7 Auxiliary Input CircuitThe AUXMODE register bit controls the auxiliary input mode of operation:In buffer mode (AUXMODE=0) the switch labelled AUXSW in Figure 7 is open and the signal at the AUX pin will be buffered and inverted through the aux circuit using only the internal components.In mixer mode (AUXMODE=1) the on-chip input resistor is bypassed, this allows the user to sum in multiple inputs with the use of external resistors. When used in this mode there will be gain variations through this path from part to part due to the variation of the internal 20k Ω resistors relative to the higher tolerance external resistors.REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTIONR1 Powermanagement 1 6AUXENAuxiliary input buffer enable 0 = OFF 1 = ONR44Input control3 AUXMODE 00 = inverting buffer1 = mixer (on-chip input resistor bypassed)Table 2 Auxiliary Input Buffer ControlINPUT BOOSTThe input BOOST circuit has 3 selectable inputs: the input microphone PGA output, the AUX amplifier output and the MICP input pin (when not using a differential microphone configuration). These three inputs can be mixed together and have individual gain boost/adjust as shown in Figure8.Figure 8 Input Boost StageThe input PGA path can have a +20dB boost (PGABOOST=1) a 0dB pass through (PGABOOST=0) or be completely isolated from the input boost circuit (INPPGAMUTE=1).REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTIONR45Input PGA gain control6INPPGAMUTEMute control for input PGA:0=Input PGA not muted, normal operation1=Input PGA muted (and disconnected from the following input BOOST stage).R47Input BOOST control8 PGABOOST 00 = PGA output has +0dB gain through input BOOST stage.1 = PGA output has +20dB gain through input BOOST stage.Table 3 Input BOOST Stage ControlThe Auxiliary amplifier path to the BOOST stage is controlled by the AUX2BOOSTVOL[2:0] register bits. When AUX2BOOSTVOL=000 this path is completely disconnected from the BOOST stage. Settings 001 through to 111 control the gain in 3dB steps from -12dB to +6dB.。
WM产品规格书
样 品 确 认 书SAMPLE REPORT FOR APPROVAL客户名称CUSTOMER 产品名称开关电源PRODUCT NAME 型 号WMAH250T120MODEL DETAIL 规 格SPECIFICATION 料 号PART NO 供 应 商深圳市西磁科技有限公司备注：请贵公司将样品确认结果签字盖章后回传。
目 录一、产品概述----------------------------------------------------------------------------------------2深圳市西磁科技有限公司地址：深圳市南山区丽山路民企科技园3栋5搂TEL ：6 FAX ：6二、产品主要---------------------------------------------------------------------------------------- 2三、引用标准及规范----------------------------------------------------------------------------- 2四、环境条件---------------------------------------------------------------------------------------- 2五、电气特性---------------------------------------------------------------------------------------- 3六、保护特性--------------------------------------------------------------------------------------- 3七、安规要求---------------------------------------------------------------------------------------47-1 绝缘强度和绝缘阻抗------------------------------------------------------------------- 47-2 漏电流------------------------------------------------------------------------------------- 4八、产品安装、使用说明8-2 运输----------------------------------------------------------------------------------- 48-3 储存----------------------------------------------------------------------------------- 4九、包装、运输、储存十、外观尺寸10-1外形尺寸------------------------------------------------------------------------------ 510-3定位尺寸及外观图------------------------------------------------------------------- 510-3 端子定义----------------------------------------------------------------------------- 5一、产品概述1-1．低成本和高可靠性。
GEMTECH ITX-8978 主板 说明书
主板后面板提供以下接口：
6
VGA接口
主板提供一个DB 15-pin母头接口以连接到一个VGA监视器。
DVI接口
主板提供一个DVI-D接口以连接到一个DVI监视器。
HDMI接口
主板提供一个HDMI 1.3接口以连接到一个HDMI监视器。
SPDIF接口
主板提供两个 S/PDIF 接口，一个是同轴输出(Coaxial Out)，一个是光线输出(Optical Out)。
主板使用12V 5A 的适配器电源供应器给主板供电。在连接电源供应器之前，请务必确认所有的 组件都已正确安装，并且不会造成损坏。
另外，也可用ATX 12V电源接口PW1 为主板供电。在与ATX 电源供应器相连时，请务
必确认，电源供应器的接头安装方向正确，针脚对应顺序也准确无误。将电源接头插入，并使其 与主板电源接口稳固连接。 以上两种供电方式选择一种即可。
使用手册
版本 1.1 发行日期 2009年九月
安全指导
1. 务必请仔细通读本安全指导。 2. 务必请妥善保管本手册，以备将来参考。 3. 请保持本设备的干燥。 4. 在使用前，宜将本设备置于稳固的平面上。 5. 机箱的开口缝槽是用于通风，避免机箱内的部件过热。请勿将此类开口掩盖 或堵塞。 6. 在将本设备与电源连接前，请确认电源电压值，将电压调整为110/220V。 7. 请将电源线置于不会被践踏到的地方，并且不要在电源线上堆置任何物件。 8. 插拔任何扩展卡或模块前，请都将电源线拔下。 9. 请留意手册上提到的所有注意和警告事项。 10. 不得将任何液体倒入机箱开口的缝槽中，否则会产生严重损坏或电路瘫痪。 11. 如果发生以下情况，请找专业人员处理：
Expansion Slot
电子管代换表
国内外电子管代换国产型号管芯结构要紧用途国外同类型号代备注5Z3P 直热式双阳极二极管小功率全波整流5T4、5×4G、5U4G*、5ц3C、U52 氧化物阴极5Z4P 旁热式双阳极二极管小功率全波整流*5B×1、*5ц4C，GZ30、5Z4G/GT 氧化物阴极5Z1P 直热式双阳极二极管小功率全波整流氧化物阴极5Z2P 直热式双阳极二极管小功率全波整流5W4、5Y3G、80、U50 氧化物阴极5Z8P 旁热式双阳极二极管全波整流*5ц8C 氧化物阴极5Z9P 旁热式双阳极二极管全波整流*5ц9C 氧化物阴极6Z4 旁热式双阳极二极管全波整流*6ц4П、6B×4、6×4、6Z31 共阴极6Z5P 旁热式双阳极二极管小功率全波整流*6ц5C 共阴极6H2 旁热式双阳极二极管检波、整流*6×2П、6AL5、C 氧化物阴极6C1 旁热式三极管宽带电压放大*6C1П、CV664、9002 氧化物阴极6C3 旁热式三极管宽带电压放大*6C3П 阴地三极管6C4 旁热式三极管宽带电压放大*6C4П 栅地三极管6C5P 旁热式三极管低频电压放大6C5GT、*6C5C、6C5 氧化物阴极6C6B 旁热式三极管低频电压放大5703、CV3917、*6C6Ь 氧化物阴极6C7B 旁热式三极管低频电压放大*6C7Ь 氧化物阴极6C12 旁热式三极管宽带电压放大EC88、5842 高S、低N6C31B-Q 旁热式三极管电压放大*6C31Ь-B 氧化物阴极6C32B-Q 旁热式三极管电压放大*6C32Ь-B 遥截止三极管6N1 旁热式双三极管低频电压放大*6H1П、6AQ8、AA61、ECC40/82 氧化物阴极6N2 旁热式双三极管低频电压放大*6H2П、6AX7、6A V7、ECC41 氧化物阴极6N3 旁热式双三极管低频电压放大*6H3П、6A8Q、2C51、ECC42 氧化物阴极6N4 旁热式双三极管低噪声电压放大ECC83、12A×7 高μ、低N6N5P 旁热式双三极管低频功率放大*6H13C、6AS7、CV2523、6NS7G/GT 低Ri6N6（T）旁热式双三极管低频电压放大*6H6П、E182CC、12BH7 氧化物阴极6N7P 旁热式双三极管低频功率放大6H7、*H7C、6N7/G/GT 共阴极6N8P 旁热式双三极管低频电压放大*6H8C*6H8M、6SN7、6F8G、CV181、QB65、ECC32 氧化物阴极6N9P 旁热式双三极管低频电压放大*6H9C、6SL7、ECC35、6SC7、6CY7 高μ6N10 旁热式双三极管低频电压放大*6H10M、12A V7A、E82CC、CV491 氧化物阴极6N11 旁热式双三极管宽带电压放大*6H23П、6DJ8、ECC84、E88CC、6922、CV2492 高S、低RI、N6N12P 旁热式双三极管低频电压放大*6H12C、TS229、5687 氧化物阴极6N13P 旁热式双三极管低频功率放大*6H13C、6AS7、CV2523、6NS7G/GT 低内阻6N15 旁热式双三极管低频电压放大*6H15П、6J6WA、6CC31、CV858 共阴极6N16B 旁热式双三极管低频电压放大氧化物阴极6N17B 旁热式双三极管低频电压放大*6H17Ь、6112、CV5007 氧化物阴极6N21B-Q 旁热式双三极管低频电压放大氧化物阴极6N23 旁热式双三极管低频电压放大6DJ8、ECC88、PCC88 高μ低N6J1 旁热锐止五极管宽带电压放大*6ж1П、6AK5、6BC5、EF40、EF95、CV850 高频管6J1B 锐截止五极管宽带电压放大*6ж1Ь、CV3929、61489、CK5702/7083 旁热式阴极6J2 锐截止五极管宽带电压放大*6ж2П、6AS6、CV2522、EF11/732、CV4011 旁热式阴极6J2B 锐截止五极管宽带电压放大*6ж2Ь、CK5639 旁热式阴极6J3 锐截止四极管宽带电压放大*6ж3П、EF96、CV848、6BC6、6AG5 束射四极管6J4 锐截止五极管宽带电压放大*6ж4、6136、6BX6、6AC7、EF94 旁热式阴极6J4P 锐截止五极管宽带电压放大*6ж4C、CV849、1852 旁热式阴极6J5 锐截止高频管宽带电压放大*6ж5П、EF80、CV2521、6F36、6AH6 高S、束射四极管6J8 锐截止五极管低频电压放大CV2901、6SJ7、6CF8、6267、EF16、EF86、2729 低噪声N6J8P 锐截止五极管宽带电压放大*6ж8C、5693、EF6、EBC3、CV592 旁热式阴极6J9 锐截止五极管宽带电压放大*6ж9П、EF861 旁热式阴极6J20 锐截止五极管宽带电压放大*6ж20П 空间电荷栅6J23 高互导双五极管宽带电压放大*6ж23П 阴极框架栅6J23B-Q 锐截止五极管宽带电压放大*6ж23B-K 低振动噪声12J1S 锐截止五极管小功率放大*12ж1л 氧化物阴极6K1B 遥截止五极管宽带电压放大*6K16K3P 遥截止五极管宽带电压放大*6K3、6SK7、6K7、6D6、6SG7 旁热式阴极6K4 遥截止五极管宽带电压放大*6K4П、6BA6、6DA6、EF89/93、5749、6K5 旁热式阴极6K5 遥截止五极管宽带电压放大同6K4 旁热式阴极12K3P 遥截止五极管宽带电压放大12K3、12SK7/GT 旁热式阴极2P2 输出四极管低频功率放大2П2П、DL92、1S4T、1L33、1L34 直热式阴极2P3 束射四极管低频功率放大3A4、1662、CV807、DL93 直热式阴极2P19B 五极管功率放大直热式阴极2P29 直热式五极管功率放大*2、*2П29л 氧化物阴极4P1S 直热式阴极功率放大*4П1л、4L2D 五极管6P1 束射四极管低频功率放大*6П1П、6AQ5、6BW6、6L31、EL14、90 旁热式阴极6P3P 束射四极管低频功率放大*6П3C、*6л6C、6L6、6L6G/GT、1614、1619、1622 同型：1631、6TT3C6P4P 束射四极管低频功率放大旁热式阴极6P6P 旁热式束射四极管低频功率放大*6П2、*6П6C、6Φ6、1611、1613、1621、6K6、CV509、6V6GT、CV510、CV1912、CV511、6N6C、KT636P9P 旁热式五极管宽带功率放大*6П9C、CV569 氧化物阴极6P13P 束射四极管低频功率放大*6П13C（旁热）旁热式阴极6P14P 旁热式五极管宽带功率放大*6П14П、6BQ5、N709、EL84、CV2975、7320、6L40 氧化物阴极6P15P 旁热式五极管低频功率放大6CH6、6CW5、EL180、EL821、CV2127、12BY7A 氧化物阴极6P25B 束射四极管低频功率放大*6П25Ь、EL71、5902 氧化物阴极6P30B-Q 束射四极管低频功率放大*6П30Ь-B（旁热）氧化物阴极6P31B-Q 束射四极管低频功率放大*6П31Ь-B（旁热）氧化物阴极13P1P 输出五极管低频功率放大*13П1C 旁热式阴极6S6 高S五极管电压/功率放大*6Э1П（旁热）氧化物阴极6T1 高频双四极管推挽输出QM322、5656 旁热式阴极6A2 七极电子管TUNER变频CV453、EK90、X77、*6A2П、6BE5、5750 旁热式阴极6F1 三极-五极管变频/电压放大*6Φ1П、6BL8、6C16 旁热式阴极6F2 三极-五极管变频/电压放大6Φ2П、6U8、6GH、CV5065、ECF82、6BL8 旁热式阴极6G2P 双二极-三极管检波、电压放大*6Γ2、6SQ7、6SQ7GT/G 旁热式阴极WE300B 直热式三极管功率放大300B、4300A 古典式低内阻FU-5 直热式三极管低频功率放大T100-1、RK57、ML714、NU-150、CV2622、CV2768 F123A、GL805、HF150、CV25FU-7 旁热式四极管大S功率放大QV05-25、RK39、HY-61、QE06-50、CV124、807 5B/250A、807V、5S1FU-13 直热束射四极管功率放大*гY-13、813、4B13 TT10、QY2-100、QB2、250、CV278、4T100 CV1927、3874A、5C/100AFU-15 直热束射五极管中功率放大*гY-15 氧化物热子FU-17 双束射四极管中功率放大*гY-17、CV3517、6360、QQV03-10、QQV03/12 旁热式阴极FU-25 旁热束射四极管宽带功率放大1625、FD-25 氧化物阴极FU-29 双束射四极管宽带功率放大*гY-29、829B 旁热式阴极FU-31 直热式三极管宽带功率放大2T26、826、826“RCA” 钍钨阴极FU-32 双束射四极管宽带功率放大*гY-32、RS1019、TT20SRS4452、QQE03/20、P2-12 与FU-29类同FU-33 直热式三极管功率放大ES833、CV635、B142、3578、833A、5T33 钍钨阴极FU-46 旁热式五极管中功率放大QV06-20、P40、QE05/40、7212、6146、2B46 氧化物阴极FU-50 束射五极管宽带功率放大*гY-50、SRS552、P50/2 旁热式阴极FU-811 直热式三极管宽带功率放大*г-811、811A 钍钨阴极FU-250F 旁热式四极管宽带功率放大4C×250A 金属陶瓷型EL81 旁热式五极管功率放大6CJ6 氧化物阴极845 直热式三极管功率放大UV-845 Po≈100W6CY7 旁热式双二极管电压放大每组**管特性参数不同Rg< 100kΩ6CX8 旁热式三极管-五极管电压放大和P-K分割比6U9、6F2靓高S18045 旁热式五极管小型功放作耳机放大有极佳表现Po> 1WFC4 旁热式三极管电压放大*гC4 金属陶瓷管6C22D 旁热式三极管电压放大5876 金属陶瓷管6550 旁热束射四极管功率放大KT88 氧化物阴极KT100 旁热束射四极管功率放大KT94 氧化物阴极PL81 旁热式五极管功率放大21A6 氧化物阴极EL34 旁热式五极管功率放大6CA7、KT66 氧化物阴极2A3 直热式三极管功率放大*2C4、AD1、6A3、6B4G、6C4C211 直热式三极管功率放大FD422 直热式五极管功率放大2E226C33C-B 旁热式三极管功率放大欧美电子管置换表0A2 AG5211 0A2 SR560B2 SR3 108C1 OB2 10BQ5 YL84 10C14 19D8 10CW5 LL86 10CW5 YL86 10DE7 9R-AL1 10DX8 LCL200 10DX8 LCL84 10DX8 YCL84 10EB8 11JE8 10F18 13EC7 10F9 12AC5 10GN8 11JE8 10GV8 LCL85 10HF8 11JE8 10JA8 11JE8 10JY8 11JE8 10LD13 14G6 10LD3 14L7 10LZ8 11JE8 10P18 45B5 10PL12 50BM8 11BM8 LCL82 11JE8 10EB8 11JE8 10GN8 11JE8 10HF8 11JE8 10JA8 11JE8 10JY8 11JE8 10LZ8 11R3 LY81 11Y9 LFL200 121VP 12AC5 12A6 ABC91 12A8 OH412AC5 10F9 12AC5 121VP 12AC5 HF121 12AC5 UF4112AC5 W14212AC5 W14512AD6 UF8912AD7 12AX7 12AF3 12BR3 12AH8 20D312AJ7 HCH81 12AL5 HAA91 12AT6 HBC90 12AT7 A2900 12AT7 B15212AT7 B30912AT7 B73912AT7 E2157 12AT7 E81CC 12AT7 ECC81 12AT7 QB309 12AT7WA CC81E 12AT7WA M8162 12AT7WA QS2406 12AT7WB QA2406 12AU6 HF9412AU7 12AX7 12AU7 B32912AU7 B74912AU7 E2163 12AU7 E82CC 12AU7 ECC186 12AU7 ECC82 12AU7A 12AX7 12AV6 12BC32 12AV7 12R-LL3 12AX7 12AD7 12AX7 12AU7 12AX7 12AU7A 12AX7 12AX7A 12AX7 12BZ7 12AX7 12DF7 12AX7 12DM7 12AX7 12DT7 12AX7 6L1312AX7 702512AX7 7025A12AX7 E2164 12AX7 ECC83 12AX7A 12AX7 12AX7A M8137 12B-B14 13GB5 12BA6 12F31 12BA6 HF9312BC32 12AV6 12BE6 12H31 12BE6 HK9012BE7 UQ8012BQ6GT 12G-B6 12BR3 12AF3 12BR3 12R-K19 12BY7 EL18012BZ7 12AX7 12C8 VP12D12D4A 12G-K17 12DF7 12AX7 12DM7 12AX7 12DT7 12AX7 12DT7 ECC863 12E13 655012F31 12BA6 12FB5 30P1212FB5 PL80112FG6 UM8412FQ7 12R-LL5 12G-B3 12GW6 12G-B6 12BQ6GT 12G-B7 13CM5 12G-K17 12D4A 12GW6 12G-B3 12H31 12BE6 12HU8 PLL80 12K7 W7612K7GT OF512K8 X71M12K8GT X76M 12Q7GT DH74 12Q7GT DH76 12R-K19 12BR3 12R-LL3 12AV712S7 WD142 12SN7GT B36 12SQ7 OBC3 12X4 HZ9013CM5 12G-B7 13CM5 XL36 13D2 6SN7GT 13D3 615813EC7 10F18 13EC7 W110 13EC7 W119 13GB5 12B-B14 13GB5 XL500 13GC8 30PL1 13GC8 30PL10 13GC8 LN319 13GC8 PCL801 141DDT 14L7 141TH 14K7 14F7 XXD14G6 10LD13 14G6 DH119 14G6 UBC80 14G6 UBC81 14GW8 PCL86 14K7 141TH 14K7 UCH42 14K7 X14214L7 10LD3 14L7 141DDT 14L7 DH118 14L7 DH142 14L7 UBC41 14Y7 UCH80 14Z3 HZ50 150B2 6354 150C1 OA2 150C2 OA2 150C3 OD3 150C4 OA215A6 N15315A6 N30915A6 PL8315CW5 N379 15CW5 PL8415DQ8 PCL84 163PEN 16A5 16A 6AM516A5 163PEN 16A5 30P1616A5 N15416A5 N32916A5 PL8216A8 30PL12 16A8 N36916A8 PCL8216AQ3 XY8816GK8 30PL13 16GK8 30PL14 16GK8 PCL800 16GK8 PCL88 16KH8 ECLL800 16Y9 PFL200 171DDP 17C8 17C8 171DDP 17C8 17N817C8 UBF80 17EW8 HCC85 17KW6 PL508 17N8 17C817Z3 A6117Z3 PY80017Z3 PY80117Z3 PY8117Z3 PY8317Z3 U15317Z3 U19317Z3 U25117Z3 U34918AK5 602818FX6 X10718GB5 LL500 18GD6 19M-R10 18GD6 19M-R9 18GV8 PCL85 19AJ8 19D819CS4 PY301 19CS4 U191 19CS4 U339 19D8 10C14 19D8 19AJ8 19D8 UCH81 19D8 X119 19FL8 UBF89 19KF6 N22LL 19M-R10 18GD6 19M-R9 18GD6 19SU 19Y3 19T8 HABC80 19U3 19X3 19W3 19X3 19X3 19BD 19X3 19U3 19X3 19W3 19X3 PY80 19X3 U152 19X3 U309 19Y3 19SU 19Y3 PY82 19Y3 U154 19Y3 U192 19Y3 U3191A3 1D131A3 DA901A3 DAF90 1A5G DL311A7GT DK32 1A7GT X141AB6 1C31AB6 1H351AB6 DK961AB6 DK971AB6 X251AC6 1C21AC6 DK921AC6 X181AC6 X201AD4 DF621AD4 DF6521AH5 DAF96 1AH5 ZD25 1AJ4 1F11AJ4 DF961AJ4 W251AN5 DAF97 1AN5 DF97 1AQ5 1H33 1AR5 1S5SF 1AS5 1U5SF 1B3GT DY30 1B3GT U411BG2 DY51 1BQ2 DY802 1C1 1R51C2 1AC61C3 1AB61C5GT DL35 1C5GT N141D13 1A31D5 40SUA 1E3 DC801F1 1AJ41F2 1L41F3 1T41F5G KL351FD1 1AH5 1FD9 1S51G50 2050A 1H2 1S21H33 1AQ5 1H33 1R5SF 1H35 1AB6 1H5GT DAC32 1H5GT HD14 1L4 1F21L4 DF921M1 1N31M3 DM70 1M3 Y251N3 1M11N3 DM71 1N5GT DF331P10 3S4 1P11 3V4 1Q5GT DL36 1R5 1C11R5 DK91 1R5 X171R5SF 1H33 1R5^ 1H33 1RK23 1S2 1S2 1H21S2 1RK23 1S2 DY86 1S2A DY87 1S4 DL91 1S5 1FD9 1S5 DAC21 1S5 DAF91 1S5 DF26 1S5 ZD17 1S5SF 1AR5 1T2 R161T2 U371T4 1F31T4 DF91 1T4 W17 1U4 DF904 1U4 HY145 1U5 DAF92 1U5SF 1AS5 1V6 DCF60 1W4 R31X2 1X2A 1X2 1X2B 1X2A 1X2 1X2A DY80 1X2A R19 1X2B 1X2 1X2B HD93 2050 BA2 2050 EN32 2050A 1G50 20A3 2D21 20AQ3 LY88213PEN 21A621A6 213PEN 21A6 N15221A6 N35921A6 PL8121A6 PL82021KQ6 LL521 25A6 KT3325BQ6GT 25G-B6 25BQ6GTB HD96 25BR3 25R-K19 25BR3 U32925E5 N30825E5 PL3625G-B6 25BQ6GT 25GF6 30P19 25GF6 30P425GF6 N38925GF6 PL30225R-K19 25BR3 25W6GT KT32 25Z4GT U3127GB5 PL500 27KG66 LL505 28EC4 LY50029KQ6 PL5212B/250A 8072B35 6D12B35 EA502B35 T6D2D21 20A32D21 4G280K 2D21 ASG512 2D21 EN912D21 PL212D21 RL212ER5 XC952FY5 XC972HA5 XC9002HR8 XCF862J2 R202J2 U262J2 U492X2A 2X22X2A H2-10 2Y2 2X230A5 HL94 30AE3 PY88 30C1 9A830C1 9A830C15 9EN7 30C18 7GV7 30CW5 HL86 30F5 7ED7 30FL1 9GB8 30L1 7AN7 30L15 7EK7 30P12 12FB5 30P16 16A5 30P18 15CW5 30P19 25GF6 30P4 25GF6 30PL1 13GC8 30PL10 13GC8 30PL12 16A8 30PL13 16GK8 30PL14 16GK8 311SU 31A3 31A3 311SU 31A3 U118 31A3 U142 31A3 U145 31A3 UY41 31A3 UY42 31A3 V311 31A3 V312 32F 95635FN5 PL300 35W4 HY90 35Z4GT U74 35Z4GT U76 38A3 U119 38A3 U381 38A3 UT85 38A3 UY89 3A4 DL933AJ8 XCH81 3AL5 XAA91 3AL5 XB913AU6 XF943B4 DL983B4 HD303BH2 GY501 3BX6 XF803BY7 XF853BZ6 3M-V7 3C4 1P13C4 DL963C4 N253C6 XXB3D6 DL293DK6 3M-R24 3EH7 XF183 3EJ7 XF184 3ER5 YC95 3FY5 LC973FY5 YC973HA5 LC900 3M-R24 3DK6 3M-V7 3BZ6 3Q4 DL953Q4 N183Q5GT DL33 3Q5GT N153Q5GT N163S4 1P103S4 DL923S4 N173S4SF 3W43V4 1P113V4 DL943V4 N193W4 3S4SF 40KG6 PL505 40SUA 1D5 42EC4 PY500 451PT 45A5 45A5 451PT 45A5 BF45145B5 10P18 45B5 N119 45B5 UL844BL8 5R-HP1 4BL8 XCF80 4BS8 4R-HH2 4CM4 PC86 4DL4 PC884EH7 LF183 4EH7 YF183 4EJ7 LF184 4EJ7 YF184 4ES8 XCC189 4FY5 PC974G280K 2D21 4GJ7 4GX74GJ7 XCF801 4GK5 PC954GX7 4GJ74HA5 PC900 4HR8 PF864KN8 4R-HH8 4R-HH2 4BS8 4R-HH8 4KN8 4Y25 807欧美电子管置换表50BM8 10PL12 50BM8 LN119 50BM8 UCL82 50C5 HL92 50L6GT KT71 52KU 5Z4G 54KU 5AQ4 55N3 UY82 5636 EF730 5642 DY70 5651A QS1209 5654 EF905 5654 M8100 5654 QM557 5670 6CC42 5672 DL6205692 6CC10 5692 QA2408 5718 EC70 5718 EC71 5725 M8196 5725 QM558 5726 AA91E 5726 DD77 5726 E91AA 5726 EAA901 5726 M8079 5726 M8212 5726 QA2404 5726 QM559 5726 QS2404 5727 E91N 5727 M8204 5763 M8096 5763 QE03/10 5763 QV03-12 5783 85A3 5823 Z900T 5840 EF72 5840 EF732 5840 M8121 5847 6R-R8C 5847 E182F 5861 EC55 5894 QQE06/40 5899 EF71 5899 EF731 5901 EF732 5902 EL71 5911 DF67 5913 DL67 5920 E90C 5920 E90CC5A/160H 6AM65AQ4 54KU5AR4 GZ345AR4 U775B/250A 8075CG4 OSW31075GJ7 LCF8015HG8 LCF865HG8 YCF865J2 KY805J6 5M-HH35L509 6KG6A5M-HH3 5J65P29 6CN65R-HP1 4BL85S1 8075U4G 5Z105U4G GZ315U4G U525U4GB H525U8 XCF825U9 LCF2015V4GA GZ325V9 LCH2005W4GT U515X9 LCF2005Y3GT U505Z10 5U4G5Z4 RS25Z4G 52KU5Z4G GZ305Z4G OSW3107 5Z4G R526/30L2 6GA8 6005 M8245 6007 DL67 6008 DF67 6021 ECC70 6028 18AK5 6057 ECC803 6060 ECC801 6063 EZ900 6079 QB5/1750 6080 ECC230 6084 E80F 6085 E80CC 6135 QA2401 6146 QE05/40 6146 QV06-206189 ECC802 6189 M8136 6201 E81CC 6201 QA2407 6205 EF734 6218 E80T 6227 E80L 6252 QQE03/20 6252 QQV03-20 6267 6CF8 6267 6F22 6267 8D8 6267 EF86 6267 EF87 6267 Z72962DDT 6CV762TH 6CU762VP 6CJ5 6351 X319 6354 150B2 6360 QQE03/12 6360 QQV03-10 6360 RS1029 6374 EY84 6375 DC70 6391 EF7463TP 6AB8 6463 ECC813 6487 EF70 6488 EF73 6489 EA7664ME 6CD764SPT 6BX4 6550 12E13 6550 7D11 6550 KT8865ME 6BR5 6681 E83CC 6686 E81L 6687 E91H 6688 E180F 6689 E83F66KU 6BT46939 QQE02/5 6939 QQV02-6 6977 DM1606A6 B636A8 6Q86A8 PH46AB X636AB4 EC926AB8 63TP6AB8 ECL806AB8 LN1526AC7 6F106AC7 OSW2190 6AC7 OSW2600 6AD8 EBF816AE8 X796AF4 6T16AF4 EC946AG5 EF966AG6 6P256AG6G BVA264 6AG6G BVA265 6AG7 6L106AG7 OSW2192 6AG7 OSW2601 6AG8 B7296AH6 6F366AJ4 EC846AJ5 6F356AJ8 20D46AJ8 6C126AJ8 6CH406AJ8 ECH816AJ8 X7196AJ9 ECF2026AK5 6F326AK5 DP616AK5 E95F6AK5 EF956AK5 PM056AK6 PM956AK8 6LD126AK8 DH7196AL3 EY886AL5 6B326AL5 6D26AL5 D1526AL5 D2M96AL5 D7176AL5 D776AL5 DD66AL5 EAA916AL5 EB916AL5 ED26AM5 16A6AM5 6P176AM5 7D96AM5 DD76AM5 DDR76AM5 EL916AM5 N1446AM5 N476AM5 N776AM5 QN776AM5 V8866AM6 5A/160H 6AM6 6F116AM6 6F126AM6 8D36AM6 EF916AM6 HP66AM6 M8063 6AM6 PM076AM6 QZ776AM6 R1446AM6 S6F12 6AM6 SP66AM6 Z776AN7 ECH80 6AQ4 6L346AQ4 EC916AQ5 6L316AQ5 BPM04 6AQ5 EL906AQ5 N7276AQ6 6BK66AQ8 B7196AQ8 ECC85 6AS6 6F336AS7G A1834 6AT6 6BK66AT6 DH776AT6 EBC90 6AT7N 6DT86AU4GT 6G-K17 6AU6 EF946AV3 6R-K19 6AV4 EZ916AV4^ 6FX46AV6 6BC32 6AV6 6BK66AV6 EBC91 6B32 6AL56B8 EBF326BA6 6F316BA6 EF936BA6 PM046BA6 W7276BC32 6AV66BD7 6LD13 6BD7 EBC80 6BD7 EBC81 6BD7A EBC36BE6 6H316BE6 EK906BE6 HM046BE6 X7276BE6 X776BE7 EQ806BH5 EF816BH6 E90F6BJ5 N786BJ6 E99F6BK6 6AQ66BK6 6AT66BK6 6AV66BK6 6BT66BK8 EF836BL8 6C166BM8 6LP12 6BM8 6PL12 6BM8 6PL12 6BM8 ECL82 6BN5 EL856BN5 N1556BQ5 6P156BQ5 EL846BQ5 N7096BQ6GT 6G-B3A 6BQ6GTB HD94 6BQ7A ECC180 6BR5 65ME6BR5 EM806BR7 8D56BS4 EC936BS7 8D76BS8 6R-HH2 6BT4 66KU6BT4 EZ406BT4 MU146BT4 U1506BT4 U7186BT4 UU56BT4 UU96BT4 V616BT6 6BK66BW7 8D66BX4 64SPT6BX4 6Z46BX6 EF806BX6 Z1526BX6 Z7196BY7 6F196BY7 6F266BY7 EF856BY7 W7196BZ8 X1556C12 6AJ86C15 6CJ56C16 6BL86C18 6GV76C31 6K86C4 QL776C4 V7416C6 A6776C6 G776C6 T776CA4 6V46CA4 EZ46CA4 EZ81 6CA4 U709 6CA4 UU12 6CA7 EL346CA7 KT77 6CB6 EF190 6CC10 5692 6CC31 6J66CC42 5670 6CC43 6AQ8 6CD7 64ME 6CD7 6M26CD7 EM34 6CF8 62676CH40 6AJ8 6CH6 7D10 6CH6 ECL821 6CH6 EF82 6CH6 EL821 6CH6 EL822 6CJ5 62VP6CJ5 6C156CJ5 6F156CJ5 6F166CJ5 7F166CJ5 EBF41 6CJ5 EF416CJ5 HF616CJ5 W150 6CJ6 EL816CK5 67PT 6CK5 BF61 6CK5 EL416CK5 N150 6CK6 EL803 6CK6 EL8206CM4 EC806S 6CM4 EC86 6CM5 EL366CN6 5P296CN6 EL386CQ6 6F216CQ6 9D66CQ6 E2016 6CQ6 EF926CQ6 QW77 6CQ6 V177 6CQ6 V884 6CQ6 VP66CQ6 W776CR4 A2521 6CS6 EH906CT7 EA416CT7 EAF42 6CT7 WD150 6CU7 62TH 6CU7 ECH113 6CU7 ECH42 6CU7 X1506CU7 Z1506CV7 62DDT 6CV7 6LD36CV7 DH150 6CV7 DH718 6CV7 DH817 6CV7 EBC41 6CW5 EL86 6CW7 6L16 6CW7 ECC84 6D-HH13 6FX7 6D1 2B356D2 6AL56D4 EN936D8 X736D8 X73M6DA5 EM81 6DA6 EF136DA6 EF896DC8 6FD126DG7 E89F6DG7 EF89F 6DG7 EM856DJ8 ECC88欧美电子管置换表6DL4 E88C6DL4 EC886DL5 EL956DQ6A 6G-B6 6DR8 EBF83 6DS8 ECH83 6DT8 6AT7N 6DX8 ECL846DY5 EL826E5 6S5G6E5 OSW3110 6E8 ECH826E8 X656E8G ECH35 6E8G TH626E8G X1476E8G X61M6EC4 EY5006EC7 6F186EC7 W7396ED4 ED500 6EH7 6F296EH7 EF1836EH7 EF8116EJ7 6F246EJ7 6F256EJ7 6F306EJ7 EF1846EJ7 EF8146EL7 6F236EL7 EF8126EL7 Z7496ER5 EC956ES6 EF976ES8 ECC189 6ET6 EF986EW6 6GM66F11 6AM66F12 6AM66F15 6CJ56F16 6CJ56F18 6EC76F19 6BY76F21 6CQ66F22 62676F23 6EL76F24 6EJ76F25 6EJ76F26 6BY76F29 6EH76F30 6EJ76F31 6BA66F32 6AK56F33 6AS66F35 6AJ56F36 6AH66F5GT H636F6G KT636FC7 ECC896FD12 6DC86FG6 EM846FG6 EM840 6FN5 EL3006FX4 6AV46FX7 6D-HH13 6FY5 EC976G-B3A 6BQ6GT 6G-B6 6DQ6A 6G-B9 6GW66G-K17 6AU4GT 6GA8 6/30L2 6GA8 ECC804 6GB5 EL5006GB5 EL5046GJ7 ECF801 6GM6 6EW66GM8 CC86E 6GM8 ECC86 6GV7 6C186GV7 ECF8056GW8 ECL86 6GX8 EAM86 6H31 6BE66H6 D636H6 EB346H6 OM36H6 OSW3109 6HA5 EC9006HA5 ECC900 6HG8 ECF866HG8 ELF866HS6 6EW66HT5 N2ED6HU6 EM876HU8 ELL806J4 6M-H16J4 TM126J4WA M8232 6J5 L636J5 L63B6J5 OSW3112 6J6 6CC316J6 6M-HH3 6J6 ECC916J6 M80816J6 T2M056J7 EF366J7 TTZ636J7 Z636J7GT A8636J7GT EF376J7GT KTW63 6J7GT KTZ63M 6JE6B 6JE6C6JE6C 6JE6B6JE6C 6LQ66JW8 6LX86JW8 ECF802 6JX8 ECH846K6 6K6G6K6 6K6GT6K6 6K6GT/G 6K6 6K6MG6K6GT N636K6GT/G 6K6 6K6MG 6K66K7 EF396K7 OM66K7 PF96K7 W147 6K7 W616K7 W636K7GT KTZ63 6K8 6C316KG6 EL505 6KG6A 5L509 6KN8 6R-HH8 6KV6 6KV6A 6KV6A 6KV6 6KW6 EL508 6L10 6AG76L12 6AQ8 6L13 12AX7 6L16 6CW7 6L31 6AQ5 6L34 6AQ4 6L43 6CL66L6 EL376L6GC DL37 6L6GC KT66 6L6GT N666L7 X646LC6 6LH66LC6 6LH6A 6LD12 6AK8 6LD13 6BD7 6LD3 6CV7 6LD6 EL802 6LF6 6LV66LF6 N30EL 6LH6 6LC66LH6A 6LC6 6LN8 LCF80 6LP12 6BM8 6LQ6 6JE6C 6LV6 6LF66M-H1 6J46M-HH3 6J66M1 6U5G6M2 6CD76M5 EL806M6G EL336M6G KT616M6G N1476M6G PP6BG 6N3 6U36N3 EY826N8 EBF806N8 WD7096N8 ZD1526P15 6BQ56P17 6AM56P25 6AG66P9 6BM56PL12 6BM86PL12 6BM86Q4 EC806Q7 DH636Q8 6A86R-HH2 6BS86R-HH8 6KN86R-K19 6AV36R-R8C 58476R3 EY816R3 6V3P6R4 EC226R4 EC816S2 EY866S2A EY876S5G 6E56S7 OF16S7 OM56SA7 OSW3104 6SA7GT MV6-5 6SK7 OSW3111 6SL7 ECC356SN7GT 13D26SN7GT B656SN7GT ECC326T1 6AF46U3 6N36U3 EY806U5 EM356U5 Y646U5G 6M16U8 ECF826U9 ECF2016V3 EY81F6V3P 6R36V4 6CA46V4 EZ116V4 EZ36V4 EZ806V6GT OSW3106 6V9 ECH2006W7G^ 8D46X2 EY516X2 R126X2 SU616X2 U1516X2 U436X2 U456X4 6Z316X4 E9026X4 E90Z6X4 EZ906X4 U7076X4 U786X4 V2M706X4W QM5566X4W QM5566X5G EZ356X5G U1476X5G U706X9 ECF2006Y9 EFL2006Z3 AD6Z31 6X46Z4 6BX4 7025 12AX7 7025A 12AX7 7062 E180CC7320 E84L 7534 E130L 7534 E180L 7643 E80CF 7722 E280F 7737 E186F 7788 E810F 7A7 EF227A7 W143 7A7 W148 7A7 W817AN7 30L17AN7 B139 7AN7 B319 7AN7 PCC84 7AU7 PCC186 7AU7 XCC82 7B6 DH817B6 DL827B7 W149 7C5 N1487C6 DH149 7D10 6CH6 7D11 65507D9 6AM5 7DJ8 PCC88 7ED7 30F57ED7 Z329 7EK7 30L15 7EK7 B3497EK7 PCC805 7ES8 PCC189 7F16 6CJ57FC7 PCC89 7GV7 30C18 7GV7 PCF805 7J7 C6107S7 X1487S7 X817X7 XXFM7Y4 EZ227Y4 U1497Y4 U82807 5B/250A 807 5S1 807 ARS25A 807 ATS225A 807 P17A 807 QE06/50 807 QV05-25 8223 E288CC 8228 ZZ1000 8233 E55L 8254 EC1000 8255 E88C 8255 EC88 8278 EL503 8278 F1EL 83 VT8383 WT301 8453 Z550M 85A1 OE385A2 OG385A3 57838A8 9U88B8 8R-HP1 8B8 XCL82 8BQ5 XL848CW5 XL86 8D3 6AM68D4 6W7G 8D5 6BR78D6 6BW7 8D7 6BS78D8 62678GJ7 PCF801 8GJ7 PCF806 8HG8 PCF86 8R-HP1 8B88U9 PCF201 8X9 PCF200 954 E1F 954 UN954 954 ZA2 955 UN955 956 32F959 D3F9A8 30C19A8 30C19A8 9U89A8 LZ3199A8 LZ3299A8 PCF809AK8 PABC80 9AQ8 PCC85 9BM5 9P99D6 6CQ69EA8 9U89ED4 PD500 9EN7 30C15 9EN7 LZ339 9EN7 PCF800 9GB8 30FL1 9GB8 PCE800 9GH8A 9R-HH2 9GV8 XCL85 9JW8 PCF802 9P9 9BM59R-AL1 10DE7 9R-HH2 9GH8A 9U8 8A89U8 9A89U8 9EA89U8 9U8A9U8 PCF829U8A 9U89V9 PCH200 A1834 6AS7G A2521 6CR4A2900 12AT7 A61 17Z3A677 6C6A863 6J7GT AA91E 5726 ABC91 12A6 AD 6Z3AG5211 0A2 ARS25A 807 ASG512 2D21B152 12AT7B309 12AT7B319 7AN7B329 12AU7B339 12AX7B349 7EK7B36 12SN7GT B63 6A6B65 6SN7GTB719 6AQ8B729 6AG8B739 12AT7B749 12AU7B759 12AX7 BA2 2050BF451 45A5BF61 6CK5 BPM04 6AQ5 BVA264 6AG6G BVA265 6AG6G C610 7J7CC81E 12AT7WA CC86E 6GM8D152 6AL5D1C 957D2C 958AD2M9 6AL5D3F 959D61 6CT7D63 6H6D717 6AL5D77 6AL5DA90 1A3 DAC21 1S5 DAC32 1H5GT DAF90 1A3 DAF91 1S5 DAF92 1U5 DAF96 1AH5 DAF97 1AN5 DC70 6375DC80 1E3 DCC90 3A5DD7 6AM5 DD77 5726 DDR7 6AM5 DF26 1S5DF33 1N5GT DF60 5678 DF62 1AD4 DF652 1AD4 DF668 1AD4 DF67 5911 DF67 6008 DF904 1U4 DF91 1T4DF92 1L4DF96 1AJ4 DF97 1AN5 DH118 14L7 DH119 14G6 DH142 14L7 DH149 7C6 DH150 6CV7 DH63 6Q7 DH718 6CV7 DH719 6AK8 DH74 12Q7GT DH76 12Q7GT DH77 6AT6 DH81 7B6 DH817 6CV7 DK32 1A7GT DK91 1R5 DK92 1AC6 DK96 1AB6 DK97 1AB6 DL29 3D6DL31 1A5G DL33 3Q5GT DL35 1C5GT DL36 1Q5GT DL37 6L6GC DL620 5672 DL67 5913 DL67 6007DL92 3S4 DL93 3A4 DL94 3V4 DL95 3Q4 DL96 3C4 DL98 3B4 DM160 6977 DM70 1M3 DM71 1N3 DP61 6AK5 DY30 1B3GT DY51 1BG2 DY70 5642 DY80 1X2A DY802 1BQ2 DY86 1S2 DY87 1S2A E130L 7534 E1485 3A4 E180CC 7062 E180F 6688 E180L 7534 E182CC 7119 E182F 5847 E186F 7737 E188CC 7308 E1F 954E2016 6CQ6 E2157 12AT7 E2163 12AU7 E2164 12AX7 E280F 7722 E288CC 8223 E55L 8233 E80CC 6085 E80CF 7643 E80F 6084 E80L 6227 E80T 6218 E810F 7788 E81CC 12AT7 E81CC 6201 E81L 6686E83F 6689 E84L 7320 E88C 6DL4 E88C 8255 E88CC 6922 E89F 6DG7 E902 6X4E90C 5920 E90CC 5920 E90F 6BH6 E90Z 6X4E91AA 5726 E91H 6687 E91N 5727 E95F 6AK5 E99F 6BJ6 EA41 6CT7 EA50 2B35 EA76 6489 EAA901 5726 EAA91 6AL5 EABC80 6AK8 EAF41 6CT7 EAF42 6CT7 EAM86 6GX8 EB34 6H6 EB91 6AL5 EBC3 6BD7A EBC41 6CV7 EBC80 6BD7 EBC81 6BD7 EBC90 6AT6 EBC91 6AV6 EBF32 6B8 EBF41 6CJ5 EBF80 6N8 EBF81 6AD8 EBF83 6DR8 EBF85 6DC8 EBF89 6DC8 EC1000 8254 EC22 6R4 EC55 5861EC80 6Q4EC806S 6CM4 EC81 6R4EC84 6AJ4 EC86 6CM4 EC88 6DL4 EC88 8255 EC90 6C4EC900 6HA5 EC91 6AQ4 EC92 6AB4 EC93 6BS4 EC94 6AF4 EC95 6ER5 EC97 6FY5 ECC180 6BQ7A ECC186 12AU7 ECC189 6ES8 ECC230 6080 ECC32 6SN7GT ECC35 6SL7 ECC70 6021 ECC801 6060 ECC802 6189 ECC803 6057 ECC804 6GA8 ECC81 12AT7 ECC813 6463 ECC82 12AU7 ECC83 12AX7 ECC84 6CW7 ECC85 6AQ8 ECC86 6GM8 ECC863 12DT7 ECC88 6DJ8 ECC89 6FC7 ECC900 6HA5 ECC91 6J6欧美电子管置换表ECF200 6X9 ECF201 6U9 ECF202 6AJ9ECF802 6JW8 ECF805 6GV7 ECF82 6U8 ECF86 6HG8 ECH113 6CU7 ECH200 6V9 ECH35 6E8G ECH42 6CU7 ECH80 6AN7 ECH81 6AJ8 ECH82 6E8 ECH83 6DS8 ECH84 6JX8 ECL80 6AB8 ECL82 6BM8 ECL821 6CH6 ECL84 6DX8 ECL85 6GV8 ECL86 6GW8 ECLL800 16KH8 ED2 6AL5 ED500 6ED4 EF13 6DA6 EF183 6EH7 EF184 6EJ7 EF190 6CB6 EF22 7A7EF36 6J7EF37 6J7GT EF39 6K7EF41 6CJ5 EF70 6487 EF71 5899 EF72 5840 EF73 6488 EF730 5636 EF731 5899 EF732 5840 EF732 5901 EF734 6205 EF74 6391 EF80 6BX6 EF81 6BH5EF814 6EJ7 EF82 6CH6 EF83 6BK8 EF85 6BY7 EF86 6267 EF87 6267 EF89 6DA6 EF89F 6DG7 EF905 5654 EF91 6AM6 EF92 6CQ6 EF93 6BA6 EF94 6AU6 EF95 6AK5 EF96 6AG5 EF97 6ES6 EF98 6ET6 EFL200 6Y9 EH90 6CS6 EK90 6BE6 EL180 12BY7 EL300 6FN5 EL33 6M6G EL34 6CA7 EL36 6CM5 EL37 6L6 EL38 6CN6 EL41 6CK5 EL500 6GB5 EL503 8278 EL504 6GB5 EL505 6KG6 EL508 6KW6 EL71 5902 EL80 6M5 EL802 6LD6 EL803 6CK6 EL81 6CJ6 EL82 6DY5 EL820 6CK6 EL821 6CH6 EL822 6CH6 EL83 6CK6EL86 6CW5 EL90 6AQ5 EL91 6AM5 EL95 6DL5 ELF86 6HG8 ELL80 6HU8 EM34 6CD7 EM35 6U5 EM80 6BR5 EM81 6DA5 EM84 6FG6 EM840 6FG6 EM85 6DG7 EM87 6HU6 EN32 2050 EN91 2D21 EN93 6D4 EQ80 6BE7 EY500 6EC4 EY51 6X2 EY80 6U3 EY81 6R3 EY81F 6V3 EY82 6N3 EY83 6AL3 EY84 6374 EY86 6S2 EY87 6S2A EY88 6AL3 EZ11 6V4 EZ22 7Y4 EZ3 6V4 EZ35 6X5G EZ4 6CA4 EZ40 6BT4 EZ80 6V4 EZ81 6CA4 EZ90 6X4 EZ900 6063 EZ91 6AV4 F1EL 8278 FA6 5677 G/50/4K OA2G75/2D OA3G77 6C6GY501 3BH2GZ30 5Z4GGZ31 5U4GGZ32 5V4GA GZ34 5AR4H2-10 2X2AH52 5U4GBH63 6F5GT HAA91 12AL5 HABC80 19T8 HBC90 12AT6 HBC91 12AV6 HCC85 17EW8 HCH81 12AJ7 HD14 1H5GT HD30 3B4HD51 OA2HD52 OB2HD93 1X2BHD94 6BQ6GTB HD96 25BQ6GTB HF121 12AC5 HF61 6CJ5HF93 12BA6HF94 12AU6HK90 12BE6HL86 30CW5 HL90 19AQ5HL92 50C5HL94 30A5HM04 6BE6HP6 6AM6HY145 1U4HY90 35W4HZ50 14Z3HZ90 12X4KD21 OA3KD24 OC3KD25 OD3KL35 1F5GKT32 25W6GTKT63 6F6G KT66 6L6GC KT71 50L6GT KT77 6CA7 KT88 6550 KTW63 6J7GT KTZ63 6K7GT KTZ63M 6J7GT KY80 5J2L63 6J5L63B 6J5L77 6C4LC900 3HA5 LC97 3FY5 LCC189 5ES8 LCF200 5X9 LCF201 5U9 LCF80 6LN8 LCF801 5GJ7 LCF802 6LX8 LCF86 5HG8 LCH200 5V9 LCL200 10DX8 LCL82 11BM8 LCL84 10DX8 LCL85 10GV8 LF183 4EH7 LF184 4EJ7 LFL200 11Y9 LL500 18GB5 LL505 27KG66 LL521 21KQ6 LL86 10CW5 LN119 50BM8 LN152 6AB8 LN319 13GC8 LY500 28EC4 LY81 11R3 LY88 20AQ3 LZ319 9A8 LZ329 9A8 LZ339 9EN7 M8063 6AM6M8096 5763M8100 5654M8121 5840M8136 6189M8137 12AX7A M8162 12AT7WA M8196 5725M8204 5727M8212 5726M8223 OA2WA M8224 OB2WA M8232 6J4WAM8245 6005 MU14 6BT4 MV6-5 6SA7GT N119 45B5N14 1C5GTN142 45A5N144 6AM5N147 6M6GN148 7C5N15 3Q5GTN150 6CK5N152 21A6N153 15A6N154 16A5N155 6BN5N16 3Q5GTN17 3S4N18 3Q4N19 3V4N22LL 19KF6N25 3C4N2ED 6HT5N308 25E5N309 15A6N30EL 6LF6N329 16A5N359 21A6N369 16A8N378 15CW5N379 15CW5N389 25GF6。
wm8978数据手册_引脚图_参数
The device integrates preamps for stereo differential mics, and includes drivers for speakers, headphone and differential or stereo line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required.
BLOCK DIAGRAM ................................................................................................ 1
FEATURES ............................................................................................................ 1
双串口单片机(51单片机)
15. 串行口 ...............................................................................................................................55 15.1 模式 0....................................................................................................................56 15.2 模式 1....................................................................................................................56 15.3 模式 2....................................................................................................................58 15.4 模式3.....................................................................................................................59 15.5 贞错误检测............................................................................................................59 15.6 多机通信 ...............................................................................................................60
bt8918c参数
bt8918c参数
1. 音频性能，bt8918c芯片具有优秀的音频性能，支持多种音
频格式，包括MP3、WMA、AAC等，并能提供高质量的音频输出。
2. 蓝牙功能，bt8918c芯片内置蓝牙模块，可以实现无线音频
传输和蓝牙通信功能。
它支持蓝牙4.0或更高版本，并具有较远的
传输距离和稳定的连接性能。
3. 输入/输出接口，bt8918c芯片提供多种输入/输出接口，包
括USB接口、SD卡接口、AUX输入接口等，方便用户连接外部设备
并进行音频输入和输出。
4. 功率输出，bt8918c芯片具有较高的功率输出能力，可以驱
动各种类型的扬声器和音箱，提供清晰、强劲的音频效果。
5. 控制功能，bt8918c芯片支持多种控制功能，包括音量调节、音效设置、均衡器调节等，用户可以根据自己的需求进行个性化设置。
6. 节能特性，bt8918c芯片采用先进的节能技术，能够在保证
音频质量的前提下降低功耗，延长电池寿命或减少能源消耗。
总结起来，bt8918c芯片具有出色的音频性能、蓝牙功能、多种输入/输出接口、高功率输出、丰富的控制功能和节能特性。
它广泛应用于音频设备和汽车音响系统中，为用户提供高品质的音频体验。
alc897引脚定义
alc897引脚定义引脚定义：alc897引脚简介：优势：具有精简的接口，超低功耗。
引脚兼容：常见的高档IC引脚兼容，包括： MSOMT823、 MSOMT823D、 TMS320LFG100V、TMS320LFG70V。
其中MSOMT823、 MSOMT823D、 TMS320LFG100V的功能类似于TMS320LFG70V。
应用：适合于对工作电压和功耗要求不是很严格的IC产品。
应用方案：常用于早期的PDA/PDA-PC，语音IC，以及老式的早期TV、电视机等。
生产商：台湾国巨(DSB)公司。
特点：工作电压为3V~5V，功耗小于100mA。
引脚定义：引脚兼容：常见的高档IC引脚兼容，包括： MSOMT823、 MSOMT823D、TMS320LFG100V、 TMS320LFG70V。
其中MSOMT823、 MSOMT823D、TMS320LFG100V的功能类似于TMS320LFG70V。
应用：适合于对工作电压和功耗要求不是很严格的IC产品。
应用方案：常用于早期的PDA/PDA-PC，语音IC，以及老式的早期TV、电视机等。
生产商：台湾国巨(DSB)公司。
特点：工作电压为3V~5V，功耗小于100mA。
引脚定义：引脚兼容：常见的高档IC引脚兼容，包括： MSOMT823、MSOMT823D、 TMS320LFG100V、 TMS320LFG70V。
其中MSOMT823、MSOMT823D、 TMS320LFG100V的功能类似于TMS320LFG70V。
应用：适合于对工作电压和功耗要求不是很严格的IC产品。
应用方案：常用于早期的PDA/PDA-PC，语音IC，以及老式的早期TV、电视机等。
生产商：台湾国巨(DSB)公司。
特点：工作电压为3V~5V，功耗小于100mA。
引脚定义：引脚兼容：常见的高档IC引脚兼容，包括： MSOMT823、 MSOMT823D、 TMS320LFG100V、 TMS320LFG70V。
STM32使用声卡WM8978遇到的问题总结
STM32使用声卡WM8978遇到的问题总结按着原子哥F407探索者的图自己做了个板子，其中在使用声卡芯片WM8978时遇到了一些问题，目前总结一下1.使用例程播放音乐时会有滋滋的电流声。
2.播放音乐时，比如播放MP3，buffer、tempbuffer、audiodev.file这些使用外部SRAMEX时会直接导致内存溢出而死掉，只能用内存SRAMIN。
audiodev.i2sbuf1、audiodev.i2sbuf2、audiodev.tbuf可以用外部SRAMEX，但是声音都变形了，使用内部SRAMIN是正常的。
其实这两个问题是同一个原因引起的，因为在走线时，底层的I2S_MCLK走线和外部SRAM芯片顶层的数据走线形成了十字交叉，造成了互相干扰，导致外部SRAM在和WM8978同时工作不正常（外部SRAM单独使用时完全正常），走线问题解决后，一切正常了......3.使用L2、R2作为声音采集输入，LOUT1、ROUT1作为声音输出时，L2、R2的声音直通LOUT1、ROUT1，完全无法关闭对于问题3，按道理只要关闭了 WM8978内部结构图（下一页）里 39 这个寄存器控制的位就能够让LOUT1、ROUT1不输出声音，但很遗憾的是完全不起作用啊，把所有能关的寄存器都关了，甚至58个寄存器全部写0也无法关闭，瞬间崩溃异常，后来按着手册挨个查看寄存器的功能后，发现R1寄存器的第2位BUFIOEN有很大的作用，中文手册是这么解释的：WM8978的每一个模拟输出都可以单独的使能或者不使能，联合到模拟混合器的每一个输出可以单独的使能，所有输出都是默认不使能。
为了节省电能，WM8978不用的部分应该保留不使能。
输出可以在任何时间被使能，但当配置为推动模式时如果BUFIO被禁用或者BUFDCOP被停用不推荐这样做，因为这可能会导致弹出式噪音。
也就是说BUFIOEN位不置位，那没法对那些输出什么的寄存器进行开关控制。
西部数据硬盘资料2278-001004
订单号
WDH1CS10000N WDH1CS7500N WDH1CS6400N WDH1CS5000N WDH1CS3200N
容量
1 TB 750 GB 640 GB 500 GB 320 GB
接口
FireWire 400/USB 2.0/eSATA FireWire 400/USB 2.0/eSATA FireWire 400/USB2.0/eSATA FireWire 400/USB 2.0/eSATA FireWire 400/USB 2.0/eSATA
订单号
WDMS3200TN WDMS2500TN WDMS1600TN
容量
320 GB 250 GB 160 GB
接口
FireWire 400/USB 2.0 FireWire 400/USB 2.0 FireWire 400/USB 2.0
操作系统
Mac/Windows Mac/Windows Mac/Windows
订单号
WDA4NC40000N WDA4NC20000N
容量
4 TB 2 TB
接口
Ethernet Ethernet
操作系统
Windows/Mac Windows/Mac
UPC
7 18037 73366 1 7 18037 73362 3
My Passport™
Studio™
针对 Mac 格式化，具有 FireWire 400 和 USB 2.0 接口，这种便携式硬盘是移动 Mac 用户的完美之选。 5 年有限保修。
操作系统
Windows/Mac Windows/Mac
UPC
7 18037 73143 8 7 18037 73144 5
897说明书
前面板控制钮及开关1 液晶显示屏液晶显示屏(lcd)用来显示工作频率及电台的其它工作状况 2 func(功能)键这三个键用来选择很多最重要的电台操作特性。
按一下[f]键，然后旋转mem/v of ch旋钮，相应的功能键就[a)[b][c]三个键的上方(在lcd的底部)，通过这三个键可以选择17组功能。
3 mic插座将配套的mh-31手持话筒插在这个插座中4 phone插口这个1/4英寸，3接点的插座用来连接单声道或立体声的耳机。
耳机插入后，主机扬声器就静音了。
耳机音量用af钮来调整。
5 电源开关按住这个开关1秒钟，就可以开启或关闭电台电源。
电源开启时，轻按一下这个键，就可以调整频率调谐的速度，在快速调谐状态下，屏幕右下角会出现一个跑步者的图形6 [f]键按一下这个键后可以通过旋转mem/vfo ch旋钮来改变多功能键([a]，[b][c])的功能按住这个键一秒钟则可以激活相应的菜单模式。
7 lock键按一下这个键可以锁住前面板上的功能按键/旋钮，以防止无意间改变工作频率。
8 主旋钮dial这是电台的主要调谐旋钮。
可以用来调节频率以及“菜单”中的各项设置。
9 af旋钮这个旋钮是复合钮的内圈，用来调节内置扬声器或外接喇叭的音量。
顺时针为加大音量10 sql/rf旋钮这个旋钮是复合旋钮的外围，用来调节接收时射频及中频的电平，也可以通过菜单模式no-08c [sql/rf gain)的设置，用来调节静噪水平。
出厂时的缺省设置就是静噪调节状态。
11 clar/if shift键按动这个键可以激活接收信号时的清音功能。
这个功能是用来调节最大±9.99khz的频偏。
发射频率不受这个调节的影响。
按住这个键一秒钟就激活了if(中频)频偏功能，用来调节中频滤波器的频带中心频率。
12 clar旋钮当按一下clar/if shift钮以后，旋转clar旋钮就可以在±9.99khz的范围内调节清音器13 band(dwn)/band(up)按键这两个键是用来向上(up)或向下(dwn)移动频带的，可以选择的频带顺序如下：14 mem/vfo ch旋钮这个旋钮可以用来调节工作频率、存储信道以及[a]，[b]，[c]功能选择。
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• Stereo Codec: • DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz) • ADC SNR 90dB, THD -80dB (‘A’ weighted @ 48kHz) • On-chip Headphone Driver with ‘capless’ option
TERMINOLOGY ............................................................................................................ 9 POWER CONSUMPTION ....................................................................................10 SIGNAL TIMING REQUIREMENTS .....................................................................11
Advanced on-chip digital signal processing includes a 5-band equaliser, a mixed signal Automatic Level Control for the microphone or line input through the ADC as well as a purely digital limiter function for record or playback. Additional digital filtering options are available in the ADC path, to cater for application filtering such as ‘wind noise reduction’.
SYSTEM CLOCK TIMING ........................................................................................... 11 AUDIO INTERFACE TIMING – MASTER MODE ........................................................ 11 AUDIO INTERFACE TIMING – SLAVE MODE............................................................ 12 CONTROL INTERFACE TIMING – 3-WIRE MODE .................................................... 13 CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 14 DEVICE DESCRIPTION.......................................................................................15 INTRODUCTION ......................................................................................................... 15 INPUT SIGNAL PATH ................................................................................................. 17 ANALOGUE TO DIGITAL CONVERTER (ADC).......................................................... 23 INPUT LIMITER / AUTOMATIC LEVEL CONTROL (ALC) .......................................... 27 OUTPUT SIGNAL PATH ............................................................................................. 31 3D STEREO ENHANCEMENT .................................................................................... 37 ANALOGUE OUTPUTS............................................................................................... 38 DIGITAL AUDIO INTERFACES................................................................................... 52 AUDIO SAMPLE RATES ............................................................................................. 59 MASTER CLOCK AND PHASE LOCKED LOOP (PLL) ............................................... 59 GENERAL PURPOSE INPUT/OUTPUT...................................................................... 61 OUTPUT SWITCHING (JACK DETECT)..................................................................... 62 CONTROL INTERFACE.............................................................................................. 63 RESETTING THE CHIP .............................................................................................. 64 POWER SUPPLIES .................................................................................................... 64 POWER MANAGEMENT ............................................................................................ 65 REGISTER MAP...................................................................................................67 DIGITAL FILTER CHARACTERISTICS ...............................................................69 TERMINOLOGY .......................................................................................................... 69 DAC FILTER RESPONSES......................................................................................... 70 ADC FILTER RESPONSES......................................................................................... 70 HIGHPASS FILTER..................................................................................................... 71 5-BAND EQUALISER .................................................................................................. 72 APPLICATIONS INFORMATION .........................................................................76 RECOMMENDED EXTERNAL COMPONENTS .......................................................... 76 PACKAGE DIAGRAM ..........................................................................................77 IMPORTANT NOTICE ..........................................................................................78 ADDRESS: .................................................................................................................. 78