Data Sheet

February 1999

LG1602 Decision Circuit

Features

s

Operation up to 3 Gbits/s

s

Good sensitivity to low input signals

s

Low power dissipation

s

Surface-mount package

Applications

s

SONET/SDH transmission systems

s

Digital video transmission

s

Digital test instruments

Functional Description

The LG1602 is a gallium arsenide (GaAs) decision

circuit. It features a sensitive broadband input ampli-

fier and a D-type flip-flop that retimes and regener-

ates an input data stream that is weakened by noise,

jitter, and intersymbol interference.

The LG1602 has complementary 50

Ω output buff-

ers.

dc feedback ensures input threshold control for input

levels as low as 25 mV, when using dc balanced

input data. The LG1602 is available in a hermetically

sealed 16-lead glass-metal surface-mount package.

5-7667(F)r.3

Figure 1. LG1602 Functional Diagram

25 k

Ω

110 pF

25 k

Ω

110 pF

D

D

Q

GND

50

Ω

50

Ω

2 pF

2 pF

50

Ω

50

Ω