BCM8020_06 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – EIGHT-CHANNEL MULTIRATE 1.0-3.2-GBPS TRANSCEIVER

BCM8020
®
EIGHT-CHANNEL MULTIRATE 1.0–3.2-GBPS TRANSCEIVER
FEATURES
SUMMARY OF BENEFITS
• _{Eight 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, 2.5 Gbps, 2.667 Gbps, 3.125 Gbps, and
3.1875 Gbps
• _{Multiconfigurable to support various operating modes}
• Eight independent 1.0- to 3.2-Gbps SerDes channels
• Dual quad 1.0- to 3.2-Gbps SerDes with channel alignment
• SerDes-to-SerDes retimer mode: CML and XAUI interfaces
• Full mesh switching maps any XAUI port to any XGMII port
for full redundancy on both transmitter and receiver
• Selectable TBI DDR/RTBI or XGMII parallel interface
• HSTL (1.8V or 1.5V) and SSTL_2 parallel interface
• _{Low power dissipation}
• Less than 300 mW per transceiver channel including I/O
• _{High-performance programmable receive equalization and}
transmit pre-emphasis
• Transmit pre-emphasis for interoperability with CML SerDes
• Receive equalization for copper interconnects
• _{Enhanced test capability}
• Serial and parallel loopback, BIST, 10G BERT, and random
Ethernet packet generation
• IEEE (1149.1) JTAG
• _{Compact 23-mm × 23-mm package with no external}
components required
• No requirement for heat sink or airflow
• One device supports a variety of applications including Gigabit
Ethernet, 1x and 2x Fibre Channel, OC-48 SONET (with/without
FEC), InfiniBand^®, 10-Gigabit Ethernet, 10-Gigabit Fibre
Channel, or others.
• Flexible architecture supports programmable configurations
enabling an aggregate data transfer rate of over 20 Mbps. Built-
in redundancy mode provides high availability to support critical
line-side or backplane applications. The high-speed to high-speed
retimer mode extends the use of longer traces on line-card
designs.
• Advanced 0.13μ CMOS process technology provides
unparalleled performance while achieving the lowest possible
power consumption
• Eases line-card designs allowing for multiple connectors or low-
cost PCB materials such as FR4
• _{Drive PMD devices or backplane directly with no external}
cleanup circuit required
• Simplifies manufacturability with integrated built-in self-test
(BIST), high-speed and low-speed loopbacks, and programmable
PRBS generator/checker
• Decreases complexity and reduces board space on multichannel
line-card designs
APPLICATIONS
• 1-Gigabit Ethernet and 10-Gigabit Ethernet LAN, MAN, WAN
switches and routers
• 1x, 2x, or 10-Gbps Fibre Channel, InfiniBand, SONET network
cards
• Advanced test equipment (ATE)
Two Independent Quad SerDes Application Diagram
TX
BCM8702
RX
ASIC/MAC
2x XENPAK
BCM8020
BCM8020
TX
2x XAUI
2x XGMII/TBI
2x XGMII/TBI
2x XAUI
BCM8702
RX