MAX3645

NOT RECOMMENDED FOR NEW DESIGNS

+2.97V to +5.5V, 125Mbps to 200Mbps Limiting Amplifier with Loss-of-Signal Detector

3V to 5.5V, 200Mbps Limiting Amplifier with LOS Detector

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • 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

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.

The MAX3645 features an integrated power detector with complementary PECL loss-of-signal (LOS) outputs that indicate when the input power level drops below a programmable threshold. An optional squelch function holds the data outputs at static levels during a LOS condition.

The MAX3645 operates from a single +3.3V or +5.0V power supply over a -40°C to +85°C temperature range. It is available in 16-pin SO and 16-pin QSOP packages.

Applications

  • ESCON Receivers
  • Fast Ethernet Receivers
  • FDDI 125Mbps Receivers
  • FTTx Receivers
  • SONET 155Mbps Transceivers
MAX3645
+2.97V to +5.5V, 125Mbps to 200Mbps Limiting Amplifier with Loss-of-Signal Detector
MAX3645: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 2

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Evaluation Kits

MAX3645EVKIT

Evaluation Kit for the MAX3645

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Features and Benefits

  • Easy +2.97V to +5.5V Electrical Evaluation
  • Fully Assembled and Tested
  • Easy LOS Threshold Programming
  • Designed for 50Ω Test Interfaces
  • Allows Alternate Output Terminations

Product Details

The MAX3645 evaluation kit (EV kit) simplifies evaluation of the MAX3645 limiting amplifier. The EV kit allows easy programming of the loss-of-signal (LOS) threshold and provides layout options for alternate output terminations.

Applications

  • ESCON Receivers
  • Fast Ethernet Receivers
  • FDDI 125Mbps Receivers
  • FTTx Receivers
  • SONET 155Mbps Transceivers
MAX3645EVKIT
Evaluation Kit for the MAX3645

Latest Discussions

2 Years Ago
MAX3645 or MAX3969 Alternative
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