BCM8073CIFBG

BCM8073 Brief ® DUAL-CHANNEL SERIAL 10GBASE-KR TO XAUI™ TRANSCEIVER SUMMARY OF BENEFITS FEATURES • Two 10G-XAUI™ interfaces in one compact package • Targeted to meet the IEEE 802.3ap standard • High-performance DFE/FFE receive equalizer with full • High-performance equalization supports new and legacy adaptation on chip backplane channels. • Multitap transmit preemphasis with automated start-up • XAUI and 10G differential pairs can be reversed to facilitate routine layout. • Auto-negotiates to 1.25G/10G • Enhanced diagnostics provide users with signal quality monitors. • Complete 1G and 10G PCS layers • Single 156.25-MHz or 25-MHz REFCLK reduces overall • Low-power equalization mode for shorter reach stackable linecard BOM cost. systems • Low-latency design for high-performance computing. • Programmable amplitude control on 10G serial transmitter • Selectable FEC encoder/decoder for added performance • Broadcom Signal Integrity Tool - LINKEYE(TM) assists customers with high-speed system designs. • Input sensitivity 20 mV peak-to-peak differential • Multiple interface support APPLICATIONS - PMD interface: Serial 10.3125-Gbps CML - 4-lane XAUI (3.125 Gbps) • Low-power 65-nm CMOS design with 1.2W/10G KR port • Backplane links • Core supply—1.0V, I/O—3.3V • Copper-cable stackable links • Loss-of-signal detection • Onboard and board-to--board links • On-chip diagnostics include 10G eye monitor, SNR, and BER monitors • Integrated packet generator and checker • 19 mm x 19 mm, 1-mm pitch, 324-pin BGA, RoHS compliant package BCM8073 Functional Block Diagram XAUI™ Media Access Controller Interface MAC Media Access Controller Interface MAC RS XGXS RS XGXS 10GBASE-KR 1000BASE-KX 10.3125 Gbps 10GBASE-KR 1000BASE-KX 10.3125 Gbps XAUI BCM8073 25M or 156.25M R E FC L K MDC MDIO (x2) Management Interface Backplane Connector (x2) XDOP 8B/10B Encoder Serializer XDON 64B/66B Synchronizer Descrambler Decoder Gearbox 8B/10B Encoder Serializer Elastic FIFO 3.125 Gbps XAOP XAON Randomizer OVERVIEW CDR and Deserializer PDIP KR Equalizer AGC PDIN 322.26M 312.5M 10.3125 Gbps CMU 25 MHz, 156.25 MHz PRBS Generator and Checker RefClk Block REFCLKP REFCLKN 312.5M 3.125 Gbps XAIN XDIP DLL and Deserializer XDIN MDIO MDC PRTAD[4:0] RSTB LSI Sync. Detect Lane Sync 8B/10B Decoder Sync. Detect Lane Sync 8B/10B Decoder 312.5M Lane Alignment FIFO Lane Alignment FIFO 322.26M 64B/66B Encoder Scrambler Gearbox DLL and Deserializer Elastic FIFO XAIP PDOP CMU and Serializer PDON x2 Management and Control Interface JTAG BCM8073 Block Diagram The BCM8073 is a dual-channel 10-GbE serial transceiver targeting the new IEEE 10GBASE-KR standard for running 10G serial data over backplane systems. The device incorporates sophisticated receive equalizers, which extend the life of legacy systems currently running at 1G or XAUI data rates by providing a 4x or 10x bandwidth improvement on each channel. The BCM8073 dual Ethernet 10GBASE-KR PHY is a fully integrated dual SerDes (10.3125 Gbps) interface device performing the extension functions for a 10-GbE reconciliation sublayer (RS) interface. The XGXS, PCS, and PMA include 8B/10B coding, 64B/66B coding, SerDes, a 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 (PLL) for the PMD and XAUI output retimers. Individual PMD and XAUI clock recovery is performed on the device by synchronizing directly with the respective incoming data streams. An external 25-MHz or 156.25-MHz oscillator is required for the reference clock input. Polarity of the XAUI and 10G differential pairs can be reversed to facilitate layout. The ordering of the XAUI lanes can also be changed. The BCM8073 is available in a 19 mm × 19 mm, 1-mm pitch, 324-pin BGA, RoHS-compliant 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 5300 California Avenue Irvine, California 92617 © 2008 by BROADCOM CORPORATION. All rights reserved. 8073-PB01-R 08/08/08 Phone: 949-926-5000 Fax: 949-926-5203 E-mail: info@broadcom.com Web: www.broadcom.com