BCM8021

Features:

* 4 independent transceivers supporting multiple data rates from 1.0 Gbps to 3.2 Gbps including 1.06 Gbps, 1.25 Gbps, 2.12 Gbps, 2.488 Gbps, 2.667 Gbps, 3.125 Gbps, and 3.1875 Gbps
* Multiconfigurable to support various operating modes
* 4 Independent 1.0 to 3.2-Gbps SerDes transceivers
* IEEE 802.3ae compliant XAUI to XGMII transceiver
* XAUI-to-XAUI retiming
* Low power dissipation
* Less than 300 mW per transceiver channel including I/O
* SONET/SDH-quality jitter performance
* Less than 3 picoseconds rms jitter generation
* Exceeds SONET jitter tolerance mask
* High performance programmable Rx equalization and Tx preemphasis
* Tx pre-emphasis for interoperability with CML SerDes
* Rx equalization for copper interconnects
* Enhanced test capability
* Full loopback and on-chip PRBS generator/checker
* IEEE (1149.1) JTAG
* Compact 21-mm × 21-mm BGA package
* No requirement for heat sink or airflow




Application

* 1-Gigabit Ethernet and 10-Gigabit Ethernet LAN, MAN, WAN switches and routers
* 1×, 2×, or 10-Gbps Fibre Channel SONET network cards
* Advanced Test Equipment (ATE)




Description

The BCM8021 device integrates 4 independent serializer/deserializer (SerDes) channels leveraging Broadcom's high-performance mixedsignal design experience along with advanced 0.13- CMOS process technology. Combine BCM8021 with a robust architecture offering the highest degree of flexibility and the result is a highly programmable, lowest power SerDes solution for network line-card and backplane applications.

An internal switch connects the parallel and serial ports of BCM8021 to enable fully redundant operation. The BCM8021 enables an active serial link to be switched to the parallel interface, while a protection serial link can be continuously monitored to insure its condition. In the event of a failure on the active link, the protection link can be instantly switched over through external control to the parallel interface.