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VITESSE SEMICONDUCTOR CORPORATION
Data Sheet
VSC8122
Multi-Rate SONET/SDH Clock and Data Recovery IC
Features
• Multi-Rate OC-3, OC-12, OC-24, OC-48 Clock and Data Recovery
• Supports Gigabit Ethernet • Differential Back Terminated I/O • Maintains Clock Output in the Absence of Data • Selectable Reference Clock
• Loss of Lock Indicator • Exceeds SONET/SDH Requirements for Jitter
Tolerance, Jitter Transfer and Jitter Generation. • 3.3V Supply Operation • 1W Typical Power • 64-pin , 10x10mm PQFP Packaging
General Description
The VSC8122 is a single-chip clock recovery IC for use in SONET OC-48, OC-24, OC-12, OC-3, or Gigabit Ethernet systems operating at their respective 2.48832Gb/s, 1.24416Gb/s, 622.08Mbps, 155.52Mbps, or 1.25Gbps data rates.