SN65MLVD047

SLLS606 − MARCH 2004

MULTIPOINT LVDS QUAD DIFFERENTIAL LINE DRIVER

FEATURES

Clock Frequencies up to 100 MHz

85

5C

TSSOP (JEDEC MS-153) Packaging

APPLICATIONS

Transmission in Telecommunications,

Automotive, Industrial, and Other Computer

Systems

Alternative to TIA/EIA-485

DESCRIPTION

The SN65MLVD047 is a quadruple line driver that

complies with the TIA/EIA-899 standard, Electrical

Characteristics

of

Multipoint-Low-Voltage Differential

Signaling (M−LVDS). The output current of this M−LVDS

device has been increased, in comparison to standard

LVDS compliant devices, in order to support doubly

terminated

transmission

lines

and

heavily

loaded

backplane bus applications. Backplane applications

generally

require

impedance

matching

termination

resistors at both ends of the bus. The effective impedance

of a doubly terminated bus can be as low as 30

Ω due to

the bus terminations, as well as the capacitive load of bus

interface devices. SN65MLVD047 drivers allow for

operation with loads as low as 30

Ω. The SN65MLVD047

devices allow for multiple drivers to be present on a single

bus. SN65MLVD047 drivers are high impedance when

disabled or unpowered. Driver edge rate control is

incorporated to support operation. The M−LVDS standard

allows up to 32 nodes (drivers and/or receivers) to be

connected to the same media in a backplane when

multiple

bus

stubs

are

expected

from

the

main

transmission

line

to

interface

devices.

The

SN65MLVD047 provides 9-kV ESD protection on all bus

pins.

1A

2A

3A

4A

1 Y

1 Z

2 Y

2 Z

3 Y

3 Z

4 Y

4 Z

LOGIC DIAGRAM (POSITIVE LOGIC)

EN

EN

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.

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.

www.ti.com

Copyright

 2004, Texas Instruments Incorporated

(1)The data rate of a line, is the number of voltage transitions that are made per second expressed in the units bps (bits per second).

AdvancedTCA and ATCA are trademarks of the PCI Industrial Computer Manufacturers Group.