SN55LVDS31 Datasheet, PDF (1/19 Pages) Texas Instruments – HIGH-SPEED DIFFERENTIAL LINE DRIVERS

SN55LVDS31, SN65LVDS31, SN65LVDS3487, SN65LVDS9638
HIGH-SPEED DIFFERENTIAL LINE DRIVERS
D Meets or Exceeds the Requirements of
ANSI TIA/EIA-644 Standard
D Low-Voltage Differential Signaling With
Typical Output Voltage of 350 mV and a
100-Ω Load
D Typical Output Voltage Rise and Fall Times
of 500 ps (400 Mbps)
D Typical Propagation Delay Times of 1.7 ns
D Operates From a Single 3.3-V Supply
D Power Dissipation 25 mW Typical per Driver
at 200 MHz
D Driver at High Impedance When Disabled or
With V_CC = 0
D Bus-Terminal ESD Protection Exceeds 8 kV
D Low-Voltage TTL (LVTTL) Logic Input
Levels
D Pin-Compatible With the AM26LS31,
MC3487, and µA9638
description
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-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 SN65LVDS31, SN65LVDS3487, and
SN65LVDS9638 are characterized for operation
from – 40°C to 85°C. The SN55LVDS31 is
characterized for operation from – 55°C to 125°C.
SLLS261F – JULY 1997 – REVISED MARCH 2000
SN55LVDS31 . . . J OR W
SN65LVDS31D
(Marked as LVDS31 or 65LVDS31)
(TOP VIEW)
1A 1
1Y 2
1Z 3
G4
2Z 5
2Y 6
2A 7
GND 8
16 V_CC
15 4A
14 4Y
13 4Z
12 G
11 3Z
10 3Y
9 3A
SN55LVDS31FK
(TOP VIEW)
3 2 1 20 19
1Z ₄
18 ^4Y
G₅
17 ^4Z
NC ₆
16 ^NC
2Z ₇
15 ^G
2Y ₈
14 ^3Z
9 10 11 12 13
SN65LVDS3487D
(Marked as LVDS3487 or 65LVDS3487)
(TOP VIEW)
1A 1
1Y 2
1Z 3
1,2EN 4
2Z 5
2Y 6
2A 7
GND 8
16 V_CC
15 4A
14 4Y
13 4Z
12 3,4EN
11 3Z
10 3Y
9 3A
SN65LVDS9638D (Marked as DK638 or LVDS38)
SN65LVDS9638DGN (Marked as L38)
(TOP VIEW)
V_CC 1
1A 2
2A 3
GND 4
8 1Y
7 1Z
6 2Y
5 2Z
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
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testing of all parameters.
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