SN75LVDS31, SN75LVDS9638

HIGH-SPEED DIFFERENTIAL LINE DRIVERS

SLLS359A – JUNE 1999 – REVISED MARCH 2000

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POST OFFICE BOX 655303

ANSI TIA/EIA-644 Standard

Typical Output Voltage of 350 mV and a

100-

Ω Load

Levels

0

°C to 70°C

description

The SN75LVDS31 and SN75LVDS9638 are

differential line drivers that implement the

electrical characteristics of low-voltage differential

signaling (LVDS). This signaling technique lowers

the output voltage levels of 5 V differential

standard levels (such as TIA/EIA-422B) to reduce the power, increase the switching speeds, and allow

operation with a 3.3-V supply rail. Any of the four current-mode drivers will deliver a minimum differential output

voltage magnitude of 247 mV into a 100-

Ω load when enabled.

The intended application of these devices and signaling technique is for point-to-point baseband data

transmission over controlled impedance media of approximately 100

Ω. The transmission media may be

printed-circuit board traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent

upon the attenuation characteristics of the media and the noise coupling to the environment.

The SN75LVDS31 and SN75LVDS9638 are characterized for operation from 0

°C to 70°C.

Copyright

© 2000, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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16

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1A

1Y

1Z

G

2Z

2Y

2A

GND

4A

4Y

4Z

G

3Z

3Y

3A

SN75LVDS31D (Marked as 75LVDS31)

(TOP VIEW)

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3

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5

1A

2A

GND

1Y

1Z

2Y

2Z

SN75LVDS9638D (Marked as DF638 or 7L9638)

(TOP VIEW)