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PRELIMINARY
XRT91L82
REV.
P1.
0.
5
2.
488/2.
666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
APRIL 2005
GENERAL DESCRIPTION
The XRT91L82 is a fully integrated SONET/SDH transceiver for OC-48/STM16 applications supporting the use of Forward Error Correction (FEC) capability.
The transceiver includes an on-chip Clock Multiplier Unit (CMU), which uses a high frequency PhaseLocked Loop (PLL) to generate the high-speed transmit serial clock from slower external clock references.
It also provides Clock and Data Recovery (CDR) functions by synchronizing its on-chip
Voltage Controlled Oscillator (VCO) to the incoming serial data stream.
The chip provides serial-to-parallel and p...