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SN75LVDS179, SN75LVDS180, SN75LVDS050, SN75LVDS051
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLLS361A – JUNE 1999 – REVISED MARCH 2000
D
D
D
D
D
D
D
D
D
Meets or Exceeds the Requirements of
ANSI TIA/EIA-644-1995 Standard
Signaling Rates up to 155 Mbps
Operates From a Single 3.3-V Supply
Low-Voltage Differential Signaling With
Typical Output Voltages of 350 mV and a
100
Ω
Load
LVTTL Input Levels are 5 V Tolerant
Driver is High Impedance When Disabled or
With V
CC
< 1.5 V
Receiver has Open-Circuit Fail Safe
Surface-Mount Packaging
– D Package (SOIC)
Characterized For Operation From
0°C to 70°C
SN75LVDS179D
(Marked as
DS179
or
7LS179)
(TOP VIEW)
V
CC
R
D
GND
1
2
3
4
8
7
6
5
A
B
Z
Y
3
D
2
R
5
6
8
7
Y
Z
A
B
SN75LVDS180D
(Marked as
7LVDS180)
(TOP VIEW)
description
The
SN75LVDS179,
SN75LVDS180,
SN75LVDS050, and SN75LVDS051 are differen-
tial line drivers and receivers that use low-voltage
differential signaling (LVDS) to achieve signaling
rates as high as 155 Mbps. The TIA/EIA-644
standard compliant electrical interface provides a
minimum differential output voltage magnitude of
247 mV into a 100
Ω
load and receipt of 100 mV
signals with up to 1 V of ground potential
difference between a transmitter and receiver.
The intended application of this device and
signaling technique is for point-to-point baseband
data transmission over controlled impedance
media of approximately 100
Ω
characteristic
impedance. The transmission media may be
printed-circuit board traces, backplanes, or
cables. (Note: The ultimate rate and distance of
data transfer is dependent upon the attenuation
characteristics of the media, the noise coupling to
the environment, and other application specific
characteristics).
The
SN75LVDS179,
SN75LVDS180,
SN75LVDS050, and SN75LVDS051 are charac-
terized for operation from 0°C to 70°C.
NC
R
RE
DE
D
GND
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
V
CC
A
B
Z
Y
NC
5
D
4
DE
RE
2
R
3
9
10
Y
Z
12
11
A
B
SN75LVDS050D
(Marked as
75LVDS050)
15
(TOP VIEW)
1D
12
1B
1
16
V
CC
DE
9
1A
2
15
1D
2D
1R
3
14
1Y
14
13
10
11
2
1
1Y
1Z
2Y
2Z
1A
1B
2A
2B
RE
2R
2A
2B
GND
4
5
6
7
8
13
12
11
10
9
1Z
DE
2Z
2Y
2D
3
1R
4
RE
5
2R
6
7
SN75LVDS051D
(Marked as
75LVDS051)
(TOP VIEW)
15
1D
1B
1
16
V
CC
4
1DE
1A
2
15
1D
3
1R
1R
3
14
1Y
14
13
2
1
10
11
1Y
1Z
1A
1B
2Y
2Z
2A
2B
1DE
2R
2A
2B
GND
4
5
6
7
8
13
12
11
10
9
1Z
2DE
2Z
2Y
2D
9
2D
12
2DE
5
2R
6
7
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.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
SN75LVDS179, SN75LVDS180, SN75LVDS050, SN75LVDS051
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLLS361A – JUNE 1999 – REVISED MARCH 2000
Function Tables
SN75LVDS179 RECEIVER
INPUTS
VID = VA – VB
VID
≥
100 mV
–100 MV < VID < 100 mV
VID
≤
–100 mV
Open
OUTPUT
R
H
?
L
H
H = high level, L = low level, ? = indeterminate
SN75LVDS179 DRIVER
INPUT
D
L
H
Open
OUTPUTS
Y
L
H
L
Z
H
L
H
H = high level, L = low level
SN75LVDS180, SN75LVDS050, and
SN75LVDS051 RECEIVER
INPUTS
VID = VA – VB
VID
≥
100 mV
–100 MV < VID < 100 mV
VID
≤
–100 mV
Open
X
RE
L
L
L
L
H
OUTPUT
R
H
?
L
H
Z
H = high level, L = low level, Z = high impedance,
X = don’t care
SN75LVDS180, SN75LVDS050, and
SN75LVDS051 DRIVER
INPUTS
D
L
H
Open
X
DE
H
H
H
L
OUTPUTS
Y
L
H
L
Z
Z
H
L
H
Z
H = high level, L = low level, Z = high impedance,
X = don’t care
2
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
SN75LVDS179, SN75LVDS180, SN75LVDS050, SN75LVDS051
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLLS361A – JUNE 1999 – REVISED MARCH 2000
equivalent input and output schematic diagrams
VCC
VCC
VCC
300 kΩ
50
Ω
D or RE
Input
DE
Input
7V
300 kΩ
50
Ω
7V
10 kΩ
5
Ω
Y or Z
Output
7V
VCC
VCC
300 kΩ
300 kΩ
5
Ω
A Input
B Input
7V
7V
7V
R Output
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3
SN75LVDS179, SN75LVDS180, SN75LVDS050, SN75LVDS051
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLLS361A – JUNE 1999 – REVISED MARCH 2000
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
†
Supply voltage range, V
CC
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4 V
Voltage range (D, R, DE, RE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6 V
Continuous power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see dissipation rating table
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential I/O bus voltages are with respect to network ground terminal.
2. Tested in accordance with MIL-STD-883C Method 3015.7.
DISSIPATION RATING TABLE
PACKAGE
D8
D14 or D16
TA
≤
25°C
POWER RATING
725 mW
950 mW
DERATING FACTOR
ABOVE TA = 25°C†
5.8 mW/°C
7.8 mW/°C
TA = 70°C
POWER RATING
464 mW
608 mW
† This is the inverse of the junction-to-ambient thermal resistance when board-mounted and with no air flow.
recommended operating conditions
MIN
Supply voltage, VCC
High-level input voltage, VIH
Low-level input voltage, VIL
Magnitude of differential input voltage,
V
ID
V
Common–mode input voltage, VIC (see Figure 6)
Operating free–air temperature, TA
0.1
ID
2
0
2.4
3
2
0.8
0.6
ID
*
V2
NOM
3.3
MAX
3.6
UNIT
V
V
V
V
V
°C
VCC–0.8
70
4
POST OFFICE BOX 655303
•
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