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