1

FEATURES

APPLICATIONS

DESCRIPTION

AI

BI

GND

E1

VCC

DI

E2

CI

AO

BO

CO

DO

9

10

16

15

14

13

12

11

1

2

3

4

5

6

7

8

DW AND D PACKAGE

(TOP VIEW)

CO

DO

BO

AO

AI

BI

CI

DI

E1

E2

AO

AO

BO

BO

CO

CO

DO

DO

FUNCTIONAL DIAGRAM

E1

E2 Condition

0

0

Active

1

0

Active

0

1

Disabled

1

1

Active

ENABLE TRUTH TABLE

TB5D1M, TB5D2H

SLLS579C – SEPTEMBER 2003 – REVISED JANUARY 2008

www.ti.com

QUAD DIFFERENTIAL PECL DRIVERS

The

TB5D1M

device

is

a

pin

and

functional

replacement for the Agere systems BDG1A and

• Functional Replacements for the Agere

BPNGA quad differential drivers. The TB5D1M has a

BDG1A, BPNGA and BDGLA

built-in lightning protection circuit to absorb large

• Pin-Equivalent to the General-Trade 26LS31

transitions

on

the

transmission

lines

without

Device

destroying the device. When the circuit is powered

down it loads the transmission line, because of the

• 2.0 ns Maximum Propagation Delays

protection circuit.

• 0.15 ns Output Skew Typical Between Pairs

The

TB5D2H

device

is

a

pin

and

functional

• Capable of Driving 50-Ω Loads

replacement for the Agere systems BDG1A and

• 5.0-V or 3.3-V Supply Operation

BDGLA quad differential drivers. Upon power down

• TB5D1M Includes Surge Protection on

the TB5D2H output circuit appears as an open circuit

Differential Outputs

and does not load the transmission line.

• TB5D2H No Line Loading When V

Both drivers feature a 3-state output with a third-state

level of less than 0.1 V.

• Third State Output Capability

• -40C to 85C Operating Temp Range

The packaging options available for these quad

differential

line

drivers

include

a

16-pin

SOIC

• ESD Protection HBM > 3 kV and CDM > 2 kV

gull-wing (DW) and a 16-pin SOIC (D) package.

• Available in Gull-Wing SOIC (JEDEC MS-013,

DW) and SOIC (D) Packages

Both drivers are characterized for operation from

-40C to 85C

The logic inputs of this device include internal pull-up

• Digital Data or Clock Transmission Over

resistors of approximately 40 k

Ω that are connected

Balanced Transmission Lines

are open circuited.

These quad differential drivers are TTL input to

pseudo-ECL differential output used for digital data

transmission over balanced transmission lines.

1

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.

Copyright © 2003–2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.