Clock and Data Recovery (CDR)
  • GN1113
  • 8.5 Gbps Fibre Channel Rx Repeater
  • GN1114
  • 8.5 Gb/s CDR with Equalizer Input and VCSEL Driver
  • GN2004S
  • 9.95 - 11.3 Gb/s Equalizer plus Clock and Data Recovery
  • GN2010D
  • Dual 8.5G & 10G CDR with integrated DML driver and limiting amplifier
  • GN2010E
  • Dual 8.5G & 10G CDR with intergrated EML driver and limiting amplifier
  • GN2012
  • Dual 8.5G & 10G CDR with integrated limiting amplifier
  • GN2013A
  • Limiting Amplifier plus Clock and Data Recovery IC with Manual Slice Level Adjust
  • GN2014A
  • XFP Tx Signal Conditioner with VCSEL Driver
Semtech GN2003S

Semtech GN2003S

9.95 - 11.3 Gb/s Limiting Amplifier plus Clock and Data Recovery

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The GN2003S is a second generation Limiting Amplifier plus CDR device. This device features Gennum's ClearEdge™ technology offering best-in-class eye quality.

Key improvements from the first generation device include significant reduction in power consumption, increased Input Jitter Tolerance and reduced Jitter Peaking.

The on-chip Limiting Amplifier offers best-in-class SRS performance, eliminating the need for a stand-alone Limiting Amplifier in optical modules.

The SRS performance combined with excellent IJT and low power consumption makes this device suitable as a high performance Limiting Amplifier with CDR for XFP, X2, XPAK, XENPAK and 300-pin Transceiver Modules.

Together with Gennum's line of 10Gb/s TIAs, excellent Stressed Eye Sensitivity performance is achieved at the module level.

The GN2003S device is packaged in a small outline 4mm × 4mm 24-pin, high-frequency QFN, lead-free and green package with exposed pad.


  • XFP Telecom and Datacom Compliant Receive Signal Conditioner
  • Multirate operation: 9.95Gb/s -11.3Gb/s
  • No reference clock required
  • Single 3.3V supply
  • Integrated Limiting Amplifier
  • Analog Connector compensation
  • Automatic input offset correction
  • Loopback differential input
  • CDR Bypass Option
  • Bit Inversion capability
  • On chip 100Ω differential I/O termination
  • Loss of signal detect with adjustable threshold
  • Loss of Lock indicator


  • 9.95 - 11.3 Gb/s Optical XFP Transceiver Modules
  • SONET OC-192/SDH STM-64 XFP and 300-pin Transceiver Modules
  • 10.3/11.1 Gb/s Ethernet XFP, X2, XPAK and XENPAK Transceiver Modules
  • 10.5/11.3 Gb/s Fibre Channel XFP Transceiver Modules

Order Codes

Part No



24 pin QFN

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