BCM8725

Dual 10-Gigabit Ethernet XFI to XAUI™ LAN/WAN Transceiver

The BCM8725 Ethernet/Fibre Channel/SONET LAN/WAN PHY is a fully integrated dual-channel erialization/deserialization (9.953 Gbps/10.3125 Gbps/10.5188 Gbps) interface device performing the extension functions for a 10 Gb serial Ethernet ReconciliationSublayer (RS) interface.

For WAN applications a WIS compliant framer with flexible clocking modes allows transmission of Ethernet traffic over a WAN network. On-chip clock synthesis is performed by the high-frequency low-jitter phase-locked loops for the PMD and XAUI™ output retimers. Individual PMD and XAUI clock recovery is performed on the device by synchronizing directly to their respective incoming data streams. Elastic buffers are provided to allow the PMD and XAUI interfaces to operate in asynchronous configuration. Only an external 155.52 MHz/156.25 MHz/159.38 MHz oscillator is required for the reference clock input.

  • Two fully independent channels
  • Pin compatible with the BCM8724
  • Meets or exceeds IEEE 802.3ae
  • Supports XFP/XFI and SFP+ interfaces

Video