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| PHYSICAL LAYER PRODUCTS DATACOM PRODUCT VSC7226 VSC7226 Quad 3.125Gb/s Backplane Transceiver S P E C I F I C AT I O N S : !REFCLK: 24.5 MHz - 312.5 MHz !Tx/Rx REFCLK Offset: 200 ppm !Serial Input Differential Terminations Adjustable Between 100 and 150 !Fast Locking CRU: <300 Data Transitions !Up to 90 Bit Periods of Inter-channel Deskew !Tolerates +/- 10 Bit Times of Clock Drift Between Resynchronizations F E AT U R E S : !Dual Speed Operation - Fibre Channel: 1.06/2.12/3.1875Gb/s - Gigabit Ethernet: 1.25Gb/s - 10G Ethernet: 3.125Gb/s - InfiniBandTM: 2.5Gb/s !Redundant XAUI Compliant Serial Links !Half-Rate Operation for Compatibility with Legacy 1Gb/s Systems !XGMII Parallel Data Inputs/Outputs !Rate Matching Between Upstream/Downstream VSC7226s !Selectable High-Speed Input Termination !2 Channel or 4-Channel Aggregation Capability !Serial Output Swing Reduction Control !Parallel Data Squelching Option !Transmitter Pre-Distortion and Receiver Equalization !Multiple Dual Data Rate (DDR) Clocking Options !Extensive Per-Channel Configuration Control Through MDIO Interface !Internal Serial and Parallel Loopback Modes !VSC7226-01 !2.5V Supply !2.1W Power Dissipation (typ.) !21mm x 21mm, 256-pin Thermally Enhanced Ball Grid Array (TBGA) !Maximum Case Temperature: 100C A P P L I C AT I O N S : !Backplane Interconnect for Data Communications Requiring 20 Gigabits Duplex of Throughput !Serial Bus Extension !10 Gigabit Ethernet XAUI Transceiver !InfiniBand - Host Channel Adapters - Target Channel Adapters - Switches !Fibre Channel - 1G/2G Rate Negotiation - Rx/Tx Channel Independence S E R I A L D ATA T R A N S F E R R AT E S F O R E A C H C H A N N E L : Full Rate Mode 2.4Gb/s - 3.125Gb/s 1.9Gb/s - 2.4Gb/s Half Rate Mode 1.2Gb/s - 1.56Gb/s 0.95Gb/s - 1.2Gb/s !JTAG and BIST Enabled !Optional 8B/10B Encoder/Decoder !VSC7226-02 InfiniBandTM/SM is a trademark and a service mark of the InfiniBand Trade Association PB-VSC7226-002 VSC7226 VSC7226 Quad 3.125Gb/s Backplane Transceiver GENERAL DESCRIPTION: The VSC7226-01 and VSC7226-02 are quad channel parallel-to-serial and serial-toparallel transceiver chips designed for use in high bandwidth data transmission between busses, backplanes and other subsystems. Each channel's transmitter section contains parallel 8-bit or 10-bit SSTL_2 input circuitry, an 8B/10B encoder, serializer and a pair of serial PECL output drivers and additional control inputs. Each channel's receiver section contains a pair of PECL inputs, clock and data recovery circuitry, a deserializer, an 8B/10B decoder, elastic buffers, 8bit or 10-bit SSTL_2 output drivers and additional control outputs. Each transmitter may be supplied 8-bit data which will be encoded into 10-bit characters for transmission, or may be supplied pre-encoded 10-bit data in which case the internal encoder is bypassed. The four channels may operate independently or in a synchronized mode transferring data that is word-aligned across 16 or 32 data inputs. VSC7320 10Gb/s MAC XAUI V S C 7 2 2 6 A P P L I C AT I O N S : Backplane Backplane Copper or Fiber Media Backplane 32 VSC7226 VSC7226 32 32 32 25Gb/s encoded duplex throughput V S C 7 2 2 6 A P P L I C AT I O N S : 10GbE Parallel Optics Interface VSC8476 LAN Interface Chip VSC7226 XGMII 32-bits @ 156.25MHz Dual-edge Clocking OPTICS 10.3Gb/s Serial Data VSC7226 BLOCK DIAGRAM: PTXEN 8 T(7:0) C/D WSEN TBC KCHAR D Q 8B/10B Encode 10 PTX+ PTXRTX+ RTXRTXEN V S C 7 2 2 6 A P P L I C AT I O N S : LAN/WAN Serial Interface Parallel Optics @ 3.125Gb/s PSDET PLL Clock Gen RXCLK 8 R(7:0) IDLE KCH ERR TXCLK Elastic Buffer 8B/10B Decode 10 Clock/ Data Recover PRX+ PRXRRX+ RRXRSDET RRXSEL VSC7640 VSC7320 10Gb/s MAC VSC7226 XGMII 32-bits @ 156.25 MHz Dual-edge Clocking XCVR 4 channel VCSEL Driver or Optics VSC7650 4 channel XAUI TIA+LA+LOS 4 x 3.125Gb/s 8B/10B Optics Module Signal Channel Shown Your Partner for Success. For more information on Vitesse Products visit the Vitesse web site at www.vitesse.com or contact Vitesse Sales at (800) VITESSE or sales@vitesse.com 741 Calle Plano Camarillo, CA 93012 Tel: 805.388.3700 Fax: 805.987.5896 www.vitesse.com (c)2002 Vitesse Semiconductor Corporation |
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