WT5001语音功放模块原理图

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12

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34

45

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67

78

8

D

D

C

C

B

B

A

A

Title Number

Revision

Size A3Date:2013/10/19

Sheet of File:

F:\求精\..\WT5001语音加功放.SchDoc

Drawn By:

C17

10UF

C1810UF

C19

0.1UF C2010UF C21

10UF

V D D 18

XTAL1晶振C2322pF

C2222pF

R171M C152.2nF

C1622nF

FB1磁珠

VDD18

C1310UF

C140.1UF

Key1按键

Key2按键

Key3按键

Key4按键

Key5按键

R12

200K R13

150K R14

100K R15

51K R16

15K

VOL+

VOL-UP

DOWN

PLAY/PAUSE

C12

10UF

R H P O U T L H P O U T

C10

10UF

D3

LED R8390R

BUSY

R610K C11

0.1UF

VDD33

VDD33

VDD33

VDD33

VDD33

+5V

TXD RXD

R9100K

R1151K VDD33C

VDD33

CARD_INS GND DAT21CD/DAT3

2CMD 3VDD 4CLK 5VSS 6DAT07DAT1810

11

12

13

CD

9

U2

MICRO SD CARD

VDD33

CARD_INS

V D D 33C 1V D D 332V D D 183S P I _C L K /D A T A 104S P I _M O S I /D A T A 115S P I _M I S O /D A T A 126D P 7D M 8X I 32K 9X O 32K 10P L L _C P 11P L L _C I

12

VDD18

13

VSS 14VDD5015VDD33_LDO

16ADC_KEY/DATA3

17CARD_INS/DATA 418DATA21

19DATA2220DATA721DATA622VMID 23AVDD3324R H P O U T

25

H P V S S 26L H P O U T 27H P V D D 28D A T A 2029D A T A 1930D A T A 1831D A T A 1732D A T A 1633D A T A 1534D A T A 1435D A T A 1336VOTP 37XRESET 38CARD_CLK 39CARD_DAT 40CARD_CMD 41DATA0

42EXT_SDL/DATA143EXT_SCL/D ATA244DATA5

45TXD/DAT A846RXD/DATA947XTEST

48

WT5001-48L

U3

WT5001-48L

R10

100K

VDD33

2

3

1P4

供电插头

3

21KG1KG

D2LED

R31K

+5V

+5V

+12V

Vin 1

G N D

2

Vout

3

U1L7805CD2T C510uF

+12V

C610uF

C70.1uF

电源部分

25V/10uF±20%

C3

123456789101112131415P6

Header 15OUT1+

OUT1-+12V MUTE

ST-BY PW-GND S-GND IN2

+12V

OUT2-OUT2+C11000uf

D11N4007

GND C20.1UF

1

2

3456P5

Header 3X2

I N 2

I N 1

C4

0.22UF

IN1

C9

0.22UF

GND

OUT2-OUT2+OUT1+

OUT1-+12V

R447K R547K

C8

10UF

GND

GND

功放

WT5001-48L

12P2

Header 2+12V

12P1

Header 212P3

Header 2

R H P O U T L H P O U T 双50K 电位器

TDA7297

1234567

8

JP1

Header 4X2GND GND

BUSY

语音模块

C 3B

1

E

2Q1

NPN

R71K BUSY TXD RXD

R1470R R2470R