BCM8706BIFBG Datasheet, PDF (2/2 Pages) Broadcom Corporation. – XAUI TO SERIAL 10G BASE-LRM TRANSCEIVER

OVERVIEW
XAOP
XAON
XDOP
XDON
25 MHz,
156.25 MHz
REFCLKP
REFCLKN
XAIP
XAIN
XDIP
XDIN
MDIO
MDC
PRTAD[4:0]
RSTB
LASI
SDA
SCL
Serializer
Serializer
8B/10B
Encoder
8B/10B
Encoder
CMU
156.25M
BCM8706
64/66B
Synchronizer
Descrambler
Decoder
CDR and
Deserializer
MMF EDC
DSP Core
AGC
322.26M
312.5M
8K ROM
uC
8K RAM
SPI
312.5M
RefClk
Block
DLL and
De-serializer
Sync. Detect
Lane Sync
8B/10B
Decoder
DLL and
De-serializer
Sync. Detect
Lane Sync
8B/10B
Decoder
Lane
Alignment
FIFO
Lane
Alignment
FIFO
64/66B
Synchronizer
Descrambler
Decoder
312.5M
322.26M
CMUR and
Serializer
Management
and
Control
Interface
I2C Serial
Interface
JTAG
XAUI BIST Generator
PMD BIST Generator
XAUI BIST Checker
PMD BIST Checker
PRBS Genertor and Checker
Optics
Control
and
Status
PDIP
PDIN
SPI
PDOP
PDON
OPRXLOS
OPTMPFLT
OPBIASFLT
OPPWFLT
OPTXENB
OPRSTB
BCM8706 Reference Design
The BCM8706 incorporates a receive equalizer that supports Electronic
Dispersion Compensation (EDC) over multimode fiber (MMF). The
EDC equalizer is designed for applications over MMF covering
distances up to 220m of OM1, OM2, OM3 fiber as per the IEEE
standard. The BCM8706 will be fully compliant with the IEEE802.3aq
standard. In enhanced performance mode, the BCM8706 is capable of
supporting up to 300m over OM1, OM2, and OM3 fiber.
An onboard microcontroller implements the control algorithm for the
MMF EDC DSP Core.
PMD and XAUI clock recovery is performed on the device by
synchronizing directly to the respective incoming data streams. An
external 25-MHz or 156.25-MHz oscillator is required for the reference
clock input.
The BCM8706 Ethernet LRM PHY is a fully integrated SerDes (10.3125
Gbps) interface device performing the extension functions for a 10-GbE
Reconciliation Sublayer (RS) interface. The XGXS, PCS, and PMA
functions include 8B/10B coding, 64B/66B coding, SerDes, Clock
Multiplication Unit (CMU), and Clock and Data Recovery (CDR).
On-chip clock synthesis is performed by the high-frequency low-jitter
phase-locked loops for the PMD and XAUI output retimers. Individual
The BCM8706 is available in a 13 mm × 13 mm, 256-pin FBGA, RoHS
compliant package.
Broadcom^®, the pulse logo, Connecting everything^®, and the Connecting everything logo are among
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owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
8706-PB00-R
05/16/06
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com