DS90LV049HMTX资料

DS90LV049H

High Temperature 3V LVDS Dual Line Driver and Receiver Pair

General Description

The DS90LV049H is a dual CMOS flow-through differential line driver-receiver pair designed for applications requiring ultra low power dissipation,exceptional noise immunity,and high data throughput.The device is designed to support data rates in excess of 400Mbps utilizing Low Voltage Differential Signaling (LVDS)technology.

The DS90LV049H drivers accept LVTTL/LVCMOS signals and translate them to LVDS signals.The receivers accept LVDS signals and translate them to 3V CMOS signals.The LVDS input buffers have internal failsafe biasing that places the outputs to a known H (high)state for floating receiver inputs.In addition,the DS90LV049H supports a TRI-STATE function for a low idle power state when the device is not in use.

The EN and EN inputs are ANDed together and control the TRI-STATE outputs.The enables are common to all four gates.

Features

n High Temperature +125˚C Operating Range n Up to 400Mbps switching rates

n Flow-through pinout simplifies PCB layout n 50ps typical driver channel-to-channel skew n 50ps typical receiver channel-to-channel skew n 3.3V single power supply design n TRI-STATE output control

n Internal fail-safe biasing of receiver inputs n Low power dissipation (70mW at 3.3V static)n High impedance on LVDS outputs on power down n Conforms to TIA/EIA-644-A LVDS Standard n

Available in low profile 16pin TSSOP package

Connection Diagram

Dual-In-Line

20161701

Order Number DS90LV049HMT

Order Number DS90LV049HMTX (Tape and Reel)

See NS Package Number MTC16

Functional Diagram

20161702

Truth Table

EN EN LVDS Out LVCMOS Out

L or Open

L or Open OFF OFF H L or Open

ON ON L or Open

H OFF OFF H

H

OFF

OFF

September 2005

DS90LV049H High Temperature 3V LVDS Dual Line Driver and Receiver Pair

©2005National Semiconductor Corporation

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.Supply Voltage (V DD )−0.3V to +4V

LVCMOS Input Voltage (D IN )−0.3V to (V DD +0.3V)

LVDS Input Voltage (R IN+,R IN-)−0.3V to +3.9V

Enable Input Voltage (EN,EN)−0.3V to (V DD +0.3V)LVCMOS Output Voltage (R OUT )−0.3V to (V DD +0.3V)

LVDS Output Voltage (D OUT+,D OUT-)

−0.3V to +3.9V

LVCMOS Output Short Circuit Current (R OUT )

100mA

LVDS Output Short Circuit Current (D OUT+,D OUT−)24mA LVDS Output Short Circuit Current Duration(D OUT+,D OUT−)Continuous Storage Temperature Range

−65˚C to +150˚C

Lead Temperature Range Soldering (4sec.)

+260˚C Maximum Junction Temperature

+150˚C

Maximum Package Power Dissipation @+25˚C MTC Package 866mW

Derate MTC Package 6.9mW/˚C above +25˚C

ESD Rating

(HBM,1.5k Ω,100pF)≥7kV (MM,0Ω,200pF)

≥250V Recommended Operating Conditions

Min

Typ Max Units Supply Voltage (V DD )+3.0

+3.3

+3.6

V

Operating Free Air Temperature (T A )

−40

+25

+125

˚C

Electrical Characteristics

Over supply voltage and operating temperature ranges,unless otherwise specified.(Notes 2,4,6)Symbol Parameter

Conditions

Pin

Min Typ

Max Units LVCMOS Input DC Specifications (Driver Inputs,ENABLE Pins)

V IH Input High Voltage D IN EN EN

2.0V DD V V IL Input Low Voltage GND 0.8V I IH Input High Current V IN =V DD −101+10µA I IL Input Low Current V IN =GND −10−0.1+10

µA V CL Input Clamp Voltage I CL =−18mA

−1.5−0.6V LVDS Output DC Specifications (Driver Outputs)

|V OD |Differential Output Voltage R L =100Ω(Figure 1)250

350450mV ∆V OD Change in Magnitude of V OD for Complementary Output States 1

35|mV|V OS Offset Voltage

1.125

1.23 1.375V ∆V OS Change in Magnitude of V OS for Complementary Output States 125|mV|I OS

Output Short Circuit Current (Note 14)

ENABLED,

D IN =V DD ,D OUT+=0V or D IN =GND,D OUT−=0V D OUT−D OUT+

−5.8

−9.0

mA

I OSD Differential Output Short Circuit Current (Note 14)ENABLED,V OD =0V −5.8−9.0mA I OFF Power-off Leakage V OUT =0V or 3.6V V DD =0V or Open −20±1+20µA I OZ

Output TRI-STATE Current

EN =0V and EN =V DD V OUT =0V or V DD

−10

±1

+10

µA

LVDS Input DC Specifications (Receiver Inputs)V TH Differential Input High Threshold V CM =1.2V,0.05V,2.35V

−1535

mV V TL Differential Input Low Threshold R IN+R IN--100

−15

mV V CMR

Common-Mode Voltage Range

V ID =100mV,V DD =3.3V 0.053V I IN

Input Current

V DD =3.6V

V IN =0V or 2.8V −12±4+12µA V DD =0V

V IN =0V or 2.8V or 3.6V

−10±1

+10

µA

D S 90L V 049H

2