The XRT91L81 is a fully integrated SONET/SDH transceiver block for applications in SONET OC-48 allowing the use of Forward Error Correction (FEC) capability.
Features
2.488 / 2.666 Gbps Transceiver.
Single-chip fully integrated solution containing
parallel-to-serial converter, clock multiplier unit (CMU), serial-to-parallel converter, limiting amplifier and clock data recovery (CDR) functions.
4-bit LVDS data paths at 622/666 MHz complies
with OIF SFI-4 Implimentation Agreement.
Internal FIFO decouples transmit input and output
clocks.
Host
mode serial microprocessor simplifies monitor and control
interface.
XRT91L30- STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L31- STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L32- STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L33- STS-12/STS-3 MULTIRATE CLOCK AND DATA RECOVERY UNIT
XRT91L34- QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
XRT94L31- 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER
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PRELIMINARY
XRT91L81
REV. P1.0.3
2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
JANUARY 2004
GENERAL DESCRIPTION
The XRT91L81 is a fully integrated SONET/SDH transceiver block for applications in SONET OC-48 allowing the use of Forward Error Correction (FEC) capability. The transceiver includes an on-chip Clock Multiplier Unit (CMU), which uses a high frequency Phase-Locked Loop (PLL) to generate the highspeed 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.
XRT91L81 Datasheet
