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
•
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.
•
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
•
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.
•
A d v a n ce d 0 . 1 3μ C M O S p r o c es s te c h n o l o g y p r o v i d e s
unparalleled performance while achieving the lowest possible
power consumption
•
Low power dissipation
•
Less than 300 mW per transceiver channel including I/O
•
Eases line-card designs allowing for multiple connectors or low-
cost PCB materials such as FR4
•
High-performance programmable receive equalization and
transmit pre-emphasis
•
Transmit
pre-emphasis for interoperability with CML SerDes
•
Receive
equalization for copper interconnects
•
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
•
Enhanced test capability
•
Serial and parallel loopback, BIST, 10G BERT, and random
Ethernet packet generation
•
IEEE (1149.1) JTAG
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Decreases complexity and reduces board space on multichannel
line-card designs
•
Compact 23-mm × 23-mm package with no external
components required
•
No requirement for heat sink or airflow
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
Backplane
2x XAUI
ASIC/MAC
2x XENPAK
BCM8020
2x XGMII/TBI
BCM8020
2x XGMII/TBI
2x XAUI
BCM8702
TX
RX
BOARDCOM [ Broadcom Corporation. ]
