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Description

The CYS25G0101DX SONET OC-48 Transceiver is a communications building block for high speed SONET data communications. It provides complete parallel-to-serial and serial-to-parallel conversion, clock generation, and clock and data recovery operations in a single chip optimized for full SONET compliance.

Transmit Path

New data is accepted at the 16-bit parallel transmit interface at a rate of 155.52 MHz. This data is passed to a small integrated FIFO to enable flexible transfer of data between the SONET processor and the transmit serializer. As each 16-bit word is read from the transmit FIFO, it is serialized and sent out to the high speed differential line driver at a rate of 2.488 Gbits per second.

Features

1. SONET OC-48 operation

2. Bellcore and ITU jitter compliance

3. 2.488 GBaud serial signaling rate

4. Multiple selectable loopback or loop through modes

5. Single 155.52 MHz reference clock

6. Transmit FIFO for flexible data interface clocking

7. 16-bit parallel-to-serial conversion in transmit path

8. Serial-to-16-bit parallel conversion in receive path