Texas Instruments SN65LVDS2DBVR, SN65LVDS2DBVT Datasheet

SN65LVDS2

HIGH-SPEED DIFFERENTIAL LINE RECEIVER

SLLS406 – DECEMBER 1999

D Meets or Exceeds ANSI TIA/EIA-644

Standard

D Designed for Signaling Rates up to

400 Mbps

D Operates From a 2.4-V to 3.6-V Supply
D Available in the SOT-23 Package
D Differential Input Voltage Threshold Less

V

CC

GND

SN65LVDS2

DBV PACKAGE

(TOP VIEW)

1

2

3

A

5

R

4

B

Than 100 mV

D Propagation Delay Times, 2.5 ns Typical

logic diagram

D Power Dissipation at 200 MHz Is Typically

60 mW

D Bus-Pin ESD Protection Exceeds 15 kV
D Open-Circuit Fail Safe
D Output is High Impedance With V

description

The SN65L VDS2 is a single low-voltage dif feren­tial line receiver in a small-outline transistor
package. The inputs comply with the TIA/EIA-644
standard and provide a maximum differential input
threshold of 100 mV over an input common-mode
voltage range of 0 V to 2.4 V.

When used with a low-voltage differential
signaling (L VDS) driver (such as the SN65LVDS1)
in a point-to-point or multidrop configuration; data
or clocking signals can be transmitted over printed-circuit board traces or cables at very high rates with very
low electromagnetic emissions and power consumption.

CC

< 1.5 V

3

A

B

4

5

R

Function Table

INPUTS OUTPUT
VID = VA – V
VID ≥ 100 mV

–100 mV < VID < 100 mV

VID ≤ –100 mV

Open H

H = high level, L = low level , ? = indeterminate

B

R
H

?
L

The high-speed switching of LVDS signals requires the use of a line impedance matching resistor at the
receiving-end of the cable or transmission media. TI offers you both the SN65LVDS2, which requires this
external resistor, or its companion the SN65L VDT2, which eliminates the need by integrating it with the receiver .
The packaging, low power, low EMI, high ESD tolerance, and wide supply voltage range make these devices
ideal for battery-powered applications.

The SN65LVDS2 is characterized for operation from –40°C to 85°C.

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.

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  1999, Texas Instruments Incorporated

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1

SN65LVDS2

Common mode in ut voltage, V

IC

(see Figure 6)

V

HIGH-SPEED DIFFERENTIAL LINE RECEIVER

SLLS406 – DECEMBER 1999

equivalent input and output schematic diagrams

V

CC

300 kΩ300 kΩ

B InputA Input

7 V

7 V

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

V

CC

5 Ω

R Output

7 V

†

Supply voltage range, VCC (see Note 1) –0.5 V to 4 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range (A, B, or R) –0.5 V to VCC+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrostatic discharge: A, B , and GND (see Note 2) CLass 3, A:15 kV, B:600 V. . . . . . . . . . . . . . . . . . . . . . .

R (see Note 2) CLass 3, A:7 kV, B:500 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total 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

DBV 385 mW 3.1 mW/°C 200 mW

†

This is the inverse of the junction-to-ambient thermal resistance when board-mounted (low-K) and with
no air flow.

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

†

TA = 85°C

POWER RATING

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, V
Magnitude of differential input voltage, VID 0.1 0.6 V

Common–mode input voltage, VIC (see Figure 6)

Operating free–air temperature, T

CC

A

2.4 3.3 3.6 V

Ť

Ť

0

–40 85 °C

2.4 *
VCC–0.8

V

ID

V

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

HIGH-SPEED DIFFERENTIAL LINE RECEIVER

S

3

COMMON-MODE INPUT VOLTAGE

vs

DIFFERENTIAL INPUT VOLTAGE

3

SN65LVDS2

SLLS406 – DECEMBER 1999

2.5

2

1.5

1

– Common-Mode Input Voltage – V

0.5

IC

V

0

0

MIN

0.1 0.3

0.2 0.4 0.6

|VID|– Differential Input Voltage – V

Figure 1. VIC vs VID and V

VCC = 3.6 V

VCC = 2.7 V

VCC = 2.4 V

0.5

0.80.7

CC

electrical characteristics over recommended operating conditions, VCC = 2.4 to 3 V (unless
otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

V

ITH+

V

ITH–

V

OH

V

OL

I

CC

I

I

I

ID

I

I(OFF)

†

All typical values are at 25°C and with a 2.7-V supply.

Positive-going differential input voltage threshold
Negative-going differential input voltage threshold
High-level output voltage IOH = –8 mA 1.9 2.4 V
Low-level output voltage IOL = 8 mA 0.25 0.4 V

Supply current

Input current (A or B inputs)

Differential input current (IIA – IIB)
Power-off input current (A or B inputs) VCC = 0 V, VI = 2.4 V ±20 µA

See Figure 2 and Table 1

No load,
Steady state

VI = 0 V ±20
VI = 2.4 V or VCC – 0.8
VIA = 0 V, VIB = 0.1 V

VIA = 2.4 V VIB = 2.3 V,

–100

–1.2

100

mV

4 7 mA

µA

±2 µA

receiver switching characteristics over recommended operating conditions, VCC = 2.4 to 2.7 V
(unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

t

PLH

t

PHL

t

sk(p)

t

r

t

f

†

All typical values are at 25°C and with a 2.7-V.

‡

t

sk(p)

Propagation delay time, low-to-high-level output 1.4 2.6 3.6 ns
Propagation delay time, high-to-low-level output
Pulse skew (|t
Output signal rise time
Output signal fall time 0.8 1.4 ns

is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output.

pHL

– t

pLH

‡

|)

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

CL = 10 pF,

ee Figure

1.4 2.5 3.6 ns

0.1 0.6 ns

0.8 1.4 ns

3