General Description

The MAX3645 limiting amplifier functions as a data quantizer and is pin compatible with the Mindspeed MC2045-2 and MC2045-2Y postamplifiers. The amplifier accepts a wide range of input voltages and provides constant-level positive emitter-coupled logic (PECL) output voltages with controlled edge speeds.

Features

♦ Pin Compatible with the Mindspeed

   MC2045-2/MC2045-2Y

♦ 500µV Input Sensitivity (BER = 10-12)

♦ Compatible with 4B/5B Data Coding

♦ Programmable LOS Threshold

♦ Stable LOS Threshold Over Supply Range

♦ Output Disable Function and Automatic Squelch

♦ Single +3.3V or +5.0V Power Supply

♦ 18mA Supply Current

Applications

   SONET 155Mbps Transceivers

   Fast Ethernet Receivers

   FDDI 125Mbps Receivers

   FTTx Receivers

   ESCON Receivers