SN55LVDS31, SN65LVDS31, SN65LVDS3487, SN65LVDS9638
HIGH SPEED DIFFERENTIAL LINE DRIVERS
SLLS261K 鈭?JULY 1997 鈭?REVISED MARCH 2004
D
Meet or Exceed the Requirements of ANSI
D
D
D
D
D
D
D
D
D
TIA/EIA-644 Standard
Low-Voltage Differential Signaling With
Typical Output Voltage of 350 mV and
100-鈩?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 V
CC
= 0
Bus-Terminal ESD Protection Exceeds 8 kV
Low-Voltage TTL (LVTTL) Logic Input
Levels
Pin Compatible With AM26LS31, MC3487,
and
碌A(chǔ)9638
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
V
CC
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
1Y
1A
3
2
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
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 delivers a minimum
differential output voltage magnitude of 247 mV
into a 100-鈩?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
鈩?
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 鈭?0擄C to 85擄C. The SN55LVDS31 is
characterized for operation from 鈭?5擄C to 125擄C.
2A
GND
SN65LVDS3487D
(Marked as
LVDS3487
or
65LVDS3487)
(TOP VIEW)
NC
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)
V
CC
1A
2A
GND
1
2
3
4
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.
PowerPAD is a trademark of Texas Instruments.
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.
Copyright
錚?/div>
1997 鈭?2004, Texas Instruments Incorporated
On products compliant to MIL PRF 38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
3Y
V
CC
4A
4Y
4Z
3,4EN
3Z
3Y
3A
1Y
1Z
2Y
2Z
4A
1
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