BCM8220数据手册Broadcom中文资料规格书

描述 Description

The world's lowest-power, highest-integrated and smallest OC-48 SONET transceiver chip. The BCM8220 requires only one-fourth the power dissipation of competitive solutions. It is also the world's first OC-48 transceiver to feature a pin-efficient, four-bit, 622.08 Mb/s LVDS interface, which is the preferred interface standard for next-generation SONET equipment. The BCM8220 FEC-capable (forward error correction), SONET/SDH transceiver is a fully integrated, SONET OC-48 (2.488/2.667 Gb/s) interface serialization/deserialization device with an integrated clock multiplication unit (CMU) and integrated clock and data recovery (CDR) circuit. Output frequency is selectable at 2.488 Gb/s or 2.667 Gb/s, allowing the user to use the FEC capability. On-chip clock synthesis is performed by the high-frequency, low-jitter, phase-locked loop on the BCM8220 transceiver chip, allowing the use of slower 77.76/155.52 MHz (83.35/166.71 MHz) external transmit clock references.

特性 Features

·OC-48/STM-16 SONET/SDH transceiver
· Selectable full-duplex transmission between standard rate of 2.488 Gb/s or Forward Error Correction rate of 2.667 Gb/s
· Single-chip integrated solution containing multiplexer (Mux), clock multiplication unit (CMU), demultiplexer (Demux) and clock data recovery (CDR) functions

应用 Application

Add/Drop Multiplexers
ATM Switch Backbones
EDGE and Terabit Routers
Digital Cross Connects
Network Interface Cards (NICs)
Hubs/Repeaters
Transmission Equipment\\u00a0