S4884

SONET/SDH/FC/GbE/HD-SDI Multi-Rate Transceiver

Benefits

Fully integrated CMOS transceiver utilizing a single fixed rate reference clock for multi-rate operation from 10 Mbps to 2.7 Gbps.

The RX/TX data path can be independently provisioned via I2C/SPI to support asymmetrical data rates.

On-chip clock synthesis and clock recovery PLL components are all contained in the device.

The device includes a clock and data recovery (CDR) unit and a demux in the receive (RX) direction.

The transmit (TX) direction contains a mux and a clock synthesis unit (CSU).

Features

• Single reference clock for 13 different data rates ranging from 10 Mbps to 2.7 Gbps (programmable by hardware pins or by registers)
• Frame/boundary detection and byte alignment for SONET/SDH and 8B/10B encoded protocols and differential RX/TX decoding/encoding
• Output data de-emphasis with adjustable swing and phase continuous output clocking
• Programmable parallel data path (4/8/10-bit or 4-bit redundant data mode) with optional parity & programmable auto squelch functionality
• Post amp offset adjust, loss of signal with run length detector, signal detect input, receive signal strength indicator, and RX/TX lock detect output circuits
• Integrated PLL loop filter components & I/O terminations for compact applications
• Dual REFCLK inputs for flexible CDR/CSU reference clocking and/or external clean-up
• Additional CDR & CSU programmable prescaler clock outputs for down/upstream timing
• I2C & SPI compatible control interfaces with global alarm interrupt, status & control
• 1.2 V & 3.3 V power supply requirements
• Complies with Bellcore/ITU-T specifications for jitter tolerance/transfer/generation as well as the related GE/FC/CPRI specifications
• Dual independent pattern generators/checkers
• Less than 1 W typical power dissipation
• Standard and Green/RoHS lead-free package options