O V E R V I E W
TxFIFOERR
FIFO
Control
TxRESET
RB_SKEW
TxPICLKSEL
TxSKEWSEL0/1
TxPICLKP
Skew
Control
Write
Pointer
Divide by 16 or 32 LVDS Clock
TxPICLKN
POLSEL
LSBSEL
TxDIN0P
TxDIN0N
TSDP
Output
Retime
CML 10G Serial Data Output
CML 10G Clock Output
TSDN
TSCLKP
TxDIN15P
TxDIN15N
TSCLKN
TxRATESEL0
TxRATESEL1
Read
Pointer
TxPCLKP
TxPCLKN
Divide by 16 Clock Output
Divide-by-16
Divide by 16 or 64
LVPECL Reference Clock
TxREFCLKP
TxREFCLKN
10GHz CMU
TxLOCKERR
PDCLNPLL
SYSCLKP
Selectable divide by
16 or 64 Clock Output
TxMCLKP
TxMCLKN
Divide-by-4
Phase
Detector
Charge
Pump
SYSCLKN
TxREFSEL
VCPCLNPLL
The BCM8128 is a fully integrated MSA-compliant quad-rate SONET/
SDH/10GE transmitter operating at OC-192 (9.953 Gbps), 10GE
(10.3125 Gbps), 10GFC (10.513 Gbps), and Forward Error Correction
(FEC) data rates (10.664/10.709, 11.096, or 11.31 Gbps) with serializer
and Clock Multiplication Unit (CMU). The low-jitter LVDS interface
and onboard low-jitter PLL exceed Optical Internetworking Forum
(OIF), IEEE 802.3ae, Telcordia, ANSI, and ITU-T jitter standards.
The BCM8128 provides skew control between the LVDS transmit
parallel input clock and data to accommodate difficult timing variances.
A 10-word FIFO decouples the parallel input timing domain from the
serial output timing domain.
The BCM8128 provides a CML serial output clock to retime the data at
the optical interface.
The BCM8128 can be powered with a single 1.8V supply or dual 1.8/
3.3V supply without any special power supply sequencing requirements.
The BCM8128 reference clock input frequency is user-selectable to the
line rate divided by either 16 or 64. The two reference clock outputs can
be squelched under user control.
The BCM8128 comes in a 11 x 11 mm, 127-pin BGA package.
Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
© 2006 by BROADCOM CORPORATION. All rights reserved.
8128-PB03-R
02/02/06