SN55LVDS32, SN65LVDS32, SN65LVDS3486, SN65LVDS9637
HIGH-SPEED DIFFERENTIAL LINE RECEIVERS
SLLS262H – JULY 1997 – REVISED MARCH 2000
Meets or Exceeds the Requirements of
ANSI TIA/EIA-644 Standard
SN55LVDS32 . . . J OR W
SN65LVDS32D
(Marked as LVDS32 or 65LVDS32)
(TOP VIEW)
Operates with a Single 3.3-V Supply
Designed for Signaling Rate of Up To
400 Mbps
1B
1A
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
4B
4A
4Y
G
Differential Input Thresholds ±100 mV Max
1Y
Typical Propagation Delay Time of 2.1 ns
G
Power Dissipation 60 mW Typical per
Receiver at 200 MHz
2Y
2A
11 3Y
10 3A
2B
Bus-Terminal ESD Protection Exceeds 8 kV
GND
9
3B
Low-Voltage TTL (LVTTL) Logic Output
Levels
SN55LVDS32FK
(TOP VIEW)
Pin-Compatible with the AM26LS32,
MC3486, and µA9637
Open-Circuit Fail Safe
3
4
2
1
20 19
description
1Y
G
4A
4Y
NC
G
18
17
16
15
14
5
6
7
The
SN55LVDS32,
SN65LVDS32,
NC
2Y
2A
SN65LVDS3486, and SN65LVDS9637 are
differential line receivers that implement the
electricalcharacteristicsoflow-voltagedifferential
signaling (LVDS). This signaling technique lowers
the output voltage levels of 5-V differential
standard levels (such as EIA/TIA-422B) to reduce
the power, increase the switching speeds, and
allow operation with a 3.3-V supply rail. Any of the
four differential receivers provides a valid logical
output state with a ±100 mV differential input
voltage within the input common-mode voltage
range. The input common-mode voltage range
allows 1 V of ground potential difference between
two LVDS nodes.
3Y
8
9
10 11 12 13
SN65LVDS3486D (Marked as LVDS3486)
(TOP VIEW)
1B
1A
V
CC
4B
1
2
3
4
5
6
7
8
16
15
14
13
12
1Y
4A
1,2EN
2Y
4Y
3,4EN
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 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.
2A
11 3Y
10 3A
2B
GND
9
3B
SN65LVDS9637D (Marked as DK637 or LVDS37)
SN65LVDS9637DGN (Marked as L37)
(TOP VIEW)
V
1A
1B
2A
2B
1
2
3
4
8
7
6
5
CC
1Y
The SN65LVDS32, SN65LVDS3486, and
SN65LVDS9637 are characterized for operation
from –40°C to 85°C. The SN55LVDS32 is
characterized for operation from –55°C to 125°C.
2Y
GND
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.
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.
1
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