SN65LVDS3487| Datasheet

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SN55LVDS31, SN65LVDS31 SN65LVDS3487, SN65LVDS9638
www.ti.com
SLLS261L JULY 1997 REVISED JULY 2007

HIGH-SPEED DIFFERENTIAL LINE DRIVERS
FEATURES
Meet or Exceed the Requirements of ANSI TIA/EIA-644 Standard Low-Voltage Differential Signaling With Typical Output Voltage of 350 mV and 100- Load Typical Output Voltage Rise and Fall Times of 500 ps (400 Mbps) Typical Propagation Delay Times of 1.7 ns Operate From a Single 3.3-V Supply Power Dissipation 25 mW Typical Per Driver at 200 MHz Driver at High Impedance When Disabled or With VCC = 0 Bus-Terminal ESD Protection Exceeds 8 kV Low-Voltage TTL (LVTTL) Logic Input Levels Pin Compatible With AM26LS31, MC3487, and A9638 Cold Sparing for Space and High Reliability Applications Requiring Redundancy
SN55LVDS31 . . . J OR W SN65LVDS31 . . . D OR PW (Marked as LVDS31 or 65LVDS31) (TOP VIEW)

1A 1Y 1Z G 2Z 2Y 2A GND

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

VCC 4A 4Y 4Z G 3Z 3Y 3A

SN55LVDS31FK (TOP VIEW)

VCC 3A
16 15 14 13 12 11 10 9 8 7 6 5

NC
1

20 19 18 4Y 17 4Z 16 NC 15 G 14 3Z

1Z G NC 2Z 2Y

4 5 6 7 8 9 10 11 12 13

GND

The SN55LVDS31, SN65LVDS31, SN65LVDS3487, and SN65LVDS9638 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- load when enabled. The intended application of these devices and signaling technique is both point-to-point and multidrop (one driver and multiple receivers) data transmission over controlled impedance media of approximately 100 . 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.

SN65LVDS3487D (Marked as LVDS3487 or 65LVDS3487) (TOP VIEW)

1A 1Y 1Z 1,2EN 2Z 2Y 2A GND

1 2 3 4 5 6 7 8

SN65LVDS9638D (Marked as DK638 or LVDS38) SN65LVDS9638DGN (Marked as L38) SN65LVDS9638DGK (Marked as AXG) (TOP VIEW)

VCC 1A 2A GND

1 2 3 4

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PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

3Y VCC 4A 4Y 4Z 3,4EN 3Z 3Y 3A 1Y 1Z 2Y 2Z

DESCRIPTION