B C M 8 1 2 1 F E A T U R E S
Network Interface
Processor
Network Interface
Processor
BCM8120
BCM8121
BCM8121
BCM8120
OTX
OTX
ORX
ORX
Application Block Diagram
·
Provides compliance with Optical Internetworking
Forum (OIF), IEEE 802.3ae, Telcordia, and ITU-T
industry standards.
·
Reduces design cycle and time to market.
·
High level of integration allows for higher port density
solutions.
·
CMOS-based device uses the most effective silicon
economy of scale.
·
Low power consumption eliminates the need for
external cooling sources.
·
Target applications:
· Transmission equipment
· Optical modules
· ADD/DROP multiplexers
· Digital cross-connects
· ATM switch backbone
· SONET test equipment
· Terabit routers
· Edge routers
· Network Interface Card (NIC)
· Hubs and repeaters
S U M M A R Y O F B E N E F I T S
MULTI-RATE 10 Gbps 1:16 DEMULTIPLEXER WITH CDR
PRODUCT
Brief
B C M 8 1 2 1
·
Fully integrated multi-rate clock and data recovery
(CDR) and demultiplexer (DEMUX)
·
1:16 DEMUX with LVDS parallel data and clock
outputs
·
Lock detect
·
Loss-of-signal detect
·
Core power supply: 1.8V
·
I/O power supply: CML, LVDS and LVPECL at 1.8V,
CMOS at 1.8 or 3.3V
·
Power consumption: 900 mW typical @ 1.8V
·
Standard CMOS fabrication process
·
15 x 15 mm, 120-pin BGA package
The
BCM8121
is a fully integrated multi-rate
SONET/SDH/10GE receiver operating at the OC-192/STM-64
(9.953 Gbps), and FEC (Forward Error Correction) data rates
(10.664 and 10.709 Gbps) with deserializer and loss-of-signal
(LOS) detection circuitry.
The BCM8121 provides high-jitter tolerance and low-jitter
generation to comply with Optical Internetworking Forum (OIF),
IEEE 802.3ae, Telcordia, ANSI, and ITU-T standards.
The BCM8121 reference clock input frequency is user-selectable
to the line rate diveded by either 16 or 64.
The receiver functions are:
· Configurable multi-rate CDR and data rates
· CML Receive Serial Data input
· 16-bit parallel LVDS output
· Selectable reference clock frequencies
· Serial-to-parallel conversion
· Lock detect
· Loss of signal
B C M 8 1 2 1 O V E R V I E W
RB_LD
RDINP
RDINN
REF155EN
REFCLKP
REFCLKN
SELFECB
VCP
VCN
LOSB
DO0P
DO0N
DO15P
DO15N
CLK16OP
CLK16ON
LCKDET
LOS
DETECT
Multi-rate
CDR
Divide-by-16
1:16 DEMUX
OUTPUT
REGISTERS
CML Serial Input
LVPECL
Reference
Clock
LVDS
Parallel
Outputs
Phone: 949-450-8700
FAX: 949-450-8710
Email: info@broadcom.com
Web: www.broadcom.com
Broadcom
®
, the pulse logo
®
and Connecting Everything
TM
are trademarks of
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
All other trademarks are the property of their respective owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2002 by BROADCOM CORPORATION. All rights reserved.
8121-PB03-R-4.1.02
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