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19-2362; Rev 1; 3/02
2.5Gbps, Low-Power, +3.3V Clock Recovery and Data Retiming IC
General Description
The MAX3875A is a compact, low-power clock recovery and data retiming IC for 2.488Gbps SDH/SONET applications. The fully integrated phase-locked loop recovers a synchronous clock signal from the serial NRZ data input, which is retimed by the recovered clock. Differential PECL-compatible outputs are provided for both clock and data signals, and an additional 2.488Gbps serial input is available for system loopback diagnostic testing. The device also includes a TTLcompatible loss-of-lock (LOL) monitor. The MAX3875A is designed for both section-regenerator and terminal-receiver applications in OC-48/STM-16 transmission systems.