2.488-Gbps Transceiver with Internal Loop Timing
The BCM8211 SONET/SDH transceiver is a fully integrated serialization/deserialization SONET OC-48 (2.488 Gbps) interface device with an integrated Clock Multiplication Unit (CMU) and an integrated Clock and Data Recovery (CDR) circuit. On-chip clock synthesis is performed by the high frequency, low jitter, phase locked loop on the BCM8211 transceiver, allowing the use of a slower 77.76/155.52 MHz external transmit clock reference.
Dual Rx and Tx 2.488-Gbps interfaces support dual-fiber ring architectures. The selected interface is active while the unselected interface remains in powered-down state. Clock recovery is performed on the device by synchronizing its on-chip VCO directly to the incoming data stream.
- Product Brief
BCM8211
- 2.488 Gbps SONET/SDH transceiver with dual differential serial I/O
- Fully integrated CDR, MUX, DEMUX, and CMU
- 16-bit, 155.52 Mbps selectable LVPECL/CMOS interface
- Product Brief
BCM8211
