physical layer product VSC7226 features: ! dual speed operation - fibre channel: 1.06/2.12/3.1875gb/s - gigabit ethernet: 1.25gb/s - 10g ethernet: 3.125gb/s - infiniband tm : 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 ! t ransmitter 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 ! jtag and bist enabled ! optional 8b/10b encoder/decoder VSC7226 quad 3.125gb/s backplane transceiver specifications: ! 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 ! t olerates +/- 10 bit times of clock drift between resynchronizations ! 2.5v supply ! 2.1w power dissipation (typ.) ! 21mm x 21mm, 256-pin thermally enhanced ball grid array (tbga) ! maximum case temperature: 100?c applications: ! backplane interconnect for data communications requiring 20 gigabits duplex of throughput ! serial bus extension ! 10 gigabit ethernet xaui transceiver ! infiniband - host channel adapters -t arget channel adapters - switches ! fibre channel - 1g/2g rate negotiation - rx/tx channel independence datacom products pb-VSC7226-002 infiniband tm/sm is a trademark and a service mark of the infiniband trade association serial data transfer rates for each channel: ! VSC7226-01 ! VSC7226-02 2.4gb/s - 3.125gb/s 1.9gb/s - 2.4gb/s 1.2gb/s - 1.56gb/s 0.95gb/s - 1.2gb/s full rate mode half rate mode
741 calle plano camarillo, ca 93012 t el: 805.388.3700 fax: 805.987.5896 www.vitesse.com y our 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 ?2002 vitesse semiconductor corporation the VSC7226-01 and VSC7226-02 are quad channel parallel-to-serial and serial-to- parallel 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, 8- bit 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. vsc 7226 block diagram: general description: VSC7226 quad 3.125gb/s backplane transceiver VSC7226 25gb/s encoded duplex throughput VSC7226 VSC7226 backplane backplane copper or fiber media 32 32 32 32 vsc 7226 applications: backplane vsc 7226 applications: lan/wan serial interface 8b/10b encode t(7:0) c/d wsen 8 10 ptx+ ptx- rtx+ rtx- prx+ prx- rrx+ rrx- clock/ data recover 10 8b/10b decode elastic buffer kchar 8 r(7:0) idle kch err dq tbc ptxen rtxen psdet rsdet rrxsel pll clock gen txclk rxclk 32-bits @ 156.25 mhz dual-edge clocking xgmii xaui 4x 3.125gb/s 8b/10b VSC7226 xcvr parallel optics @3.1 25gb/s optics module vsc7640 4c hannel vcsel driver or vsc7650 4c hannel tia+la+los optics vsc7320 10gb/s mac vsc 7226 applications: 10gbe parallel optics interface 32-bits @ 156.25mhz dual-edge clocking xgmii 10.3gb/s serial data xaui VSC7226 vsc7320 10gb/s mac vsc8476 lan interface chip optics signal channel shown
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