General Description

The VSC7969 is a 3.125Gb/s transimpedance amplifier IC with a built-in limiting amplifier, a signal detect feature and a photocurrent monitor. The VSC7969 does not require any external electrical components in the construction of a high performance optical receiver such as for SONET/SDH applications. The analog output is

a differential signal with a minimum amplitude of 200mVp-p (single-ended). The VSC7969 operates with a sin

gle power supply with a maximum power dissipation of 300mW. A PIN photodiode or APD can be connected

and separately biased to provide optimal performance.

Features

? Integrated TIA and Limiting Amplifier

?Low Power Consumption for SFF Applications

?TO Package-Compatible Layout

?On-Chip Signal Detect

?On-Chip Linear Photocurrent Monitor

?Single 3.3V Supply

?5V Supply Operation via Wirebond Option

?Compatible with PIN or Avalanche Detectors

?Packages: 16-Pin TSSOP, TO-46, Bare Die

Applications

?2.488Gb/s, 3.125Gb/s SONET OC-48/SDH STM-16

?2.125Gb/s Fibre Channel

?2.5Gb/s or 3.125Gb/s Ethernet Applications with 8B/10B Overhead

?SFF Transceivers