BOARDCOM BCM8125

BCM8125
®
10 GBPS 1:16 DEMUX WITH CDR AND LIMITING AMPLIFIER
SUMMARY OF BENEFITS
FEATURES
• Supports 10-Gigabit MSA (Multi-Source Agreement) features
• Fully integrated CDR and demultiplexer
• Support for multiple rates—OC-192: 9.953 Gbps, OC-192
FEC: 10.664 and 10.709 Gbps, 10G Ethernet: 10.3125 Gbps
• 1:16 demultiplexer with LVDS parallel data and clock outputs
• Lock detect
• Loss of signal detect
• Integrated limiting amplifier:
• Minimum input sensitivity 10 mV single ended
• Exceeds SONET jitter requirements
• Core power supply: 1.8V
• Compliant with industry standards such as Optical
Internetworking Forum (OIF), Telcordia, ITU-T, and IEEE
802.3ae standards.
• Reduces design cycle and time to market.
• High level of integration allows for higher port density
solutions.
• Uses the most effective silicon economy of scale for CMOSbased devices.
• Low power consumption eliminates the need for external
cooling sources.
APPLICATIONS
• I/O power supply: CML, LVDS, LVPECL at 1.8V, CMOS at
1.8V or 3.3V
• Power consumption: 900 mW typical @ 1.8V
• Standard CMOS fabrication process
• 11 x 11 mm, 127-pin BGA package
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OC-192/STM-64/10GE transmission equipment
SONET/SDH optical modules
ADD/DROP multiplexers
Digital cross-connects
ATM switch backbones
SONET test equipment
Terabit routers
Edge routers
BCM8124
ORX
ORX
BCM8125
9.953/10.3125/10.664/10.709Gbps
BCM8125
622.08/644.54/666.51/669.3Mbps
ORX
ORX
BCM8124
Network Interface
Processor
Network Interface
Processor
BCM8125 Application Diagram
622.08/644.54/666.51/669.3Mbps
OVERVIEW
RB_LD
TH_LOS0/1/2
LOS
DETECT
LOSB
POLSEL
RxDOUT0P
RDINN
1:16 DEMUX
LIMITING
AMPLIFIER
OUTPUT REGISTER
RDINP
CML
Serial Input
LVDS
Parallel Output
RxDOUT15P
RxDOUT15N
LSBSEL
RxREFCLKP
LVPECL
Reference Clock
Input
RxDOUT0N
RxPOCLKP
Divide-by-16
RxREFCLKN
RxRATESEL0/1
RxPOCLKN
CDR
LVDS
Reference Clock
Output
RxMUTEDOUT
RxMCLKP
VCP
VCN
Divide-by-4
RxLCKREF
RxMCLKN
RxREFSEL
RxMUTEPOCLK
RxMUTEMCLK
RxLOCKERR
The BCM8125 is a fully integrated MSA-compatible quad-rate SONET/
SDH/10GE receiver operating at OC-192/STM-64, 10GE, and two
different FEC (Forward Error Correction) data rates (9.953, 10.3125,
10.664, and 10.709 Gbps) with deserializer, clock and data recovery
(CDR), and loss-of-signal (LOS) detection circuitry. The BCM8125
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 BCM8125 reference clock input frequency is user-selectable to the
line rate divided by either 16 or 64. The reference clock output and the
LVDS receive parallel bus output can be squelched under user control.
An integrated limiting amplifier provides the BCM8125 with input
sensitivity down to 10 mV single ended, saving the customer cost and
power.
The BCM8125 can be powered with a single 1.8V supply or dual 1.8/
3.3V supply without any special power supply sequencing requirements.
The BCM8125 comes in an 11 x 11 mm, 127-pin BGA package.
Broadcom®, the pulse logo, and Connecting everything® are trademarks of Broadcom Corporation and/
or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the
property of their respective owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2004 by BROADCOM CORPORATION. All rights reserved.
8125-PB02-R
04/30/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: [email protected]
Web: www.broadcom.com