transceiver solutions product overview the marvell alaska family of gigabit ethernet (gbe) over copper transceivers are the industry?s lowest power, smallest form factor, highest performance, and highest port density solutions in volume production. the alaska quad 88e1141 and 88E1145 transceivers lead the industry with the lowest power consumption (under 3w for the entire device), enabling network systems manufacturers to decrease system cost by reducing both power supply and fan requirements. additionally, the 88E1145 device offers the smallest package footprint (21 mm x 21 mm) and requires 40% less board space than competing gigabit solutions. the alaska quad products offer additional support of 1000base-x through an integrated 1.25 ghz serializer/deserializer (serdes). features benefits highly integrated 4-port device enables highly integrated gigabit switches ultra low power, only 0.75w/port enables higher integration and reduced system cost 10/100/1000base-t ieee 802.3 compliant compatibility with existing installed base of compliant devices supports gmii/rgmii/sgmii/tbi/rtbi interfaces reduces cost and simplites pcb layout virtual cable testera (vct) feature identitcation and isolation of cable faults integrated 1.25 ghz serdes supports 1000base-x tber applications media detect feature automatically detects and contgures to complete media ?exibility either copper or tber media automatic support for 2-pair cat 5 cable (100 mbps) operates over installed 2-pair cable power management modes reduced system power four rgmii timing modes eliminate the need for on-board delay lines operation up to 180 meters cat 5 cable functions over a wider base of cabling infrastructures auto-mdi/mdix crossover for all modes of operation eases installation and reduces cost support ieee 1149.1 (jtag) and nand-tree ict simplites board level testing/debugging advanced mixed-signal and dsp techniques advanced dsp design fig 1. alaska quad gbe transceiver (88e1141/88E1145) block diagram p0_led_link10 p0_led_link100 p0_led_link1000 p0_led_duplex p0_led_rx p0_led_tx gconfig[1:0] trst# tck tdi tms tdo 10/100/1000 transmit pcs management interface led/ contguration bias/test registers auto-negotiation p0_tx_ctl p0_txd[3:0] p0_gtx_clk p0_rx_ctl p0_rxd[3:0] p0_rx_clk xtal1 xtal2 resetn 125clk p0_s_in+/- p0_s_clk+/- p0_s_out+/- p0_mdc p0_mdio p0_intn p0_rset p0_hsdacp/n p0_tstpt timing control d/a waveshape filter a/d skew control feed forward equalizer dpll trellis decoder decision feedback equalizer echo canceller near end crosstalk canceller clock/reset jtag active hybrid gain control baseline 10base-t receiver 10/100/1000 receive pcs fiber/serdes transmit alaska quad gigabit ethernet transceiver 88e1141/88E1145
alaska quad gigabit ethernet transceiver marvell semiconductor, inc. 700 first avenue sunnyvale, ca 94089 phone 408.222.2500 www.marvell.com ?2002 marvell international ltd. all rights reserved. marvell, the marvell logo, moving forward faster, alaska, the galileo logo, and galnet are registered trademarks of marvell. discovery, fastwriter, galileo technology, galtis, horizon, libertas, link street, phy advantage, prestera, raise the technology bar, virtual cable testers, and yukon are trademarks of marvell. all other trademarks are the property of their respective owners. 88e1141/1145-001 11/02 applications the marvell alaska quad transceivers enable higher port count gigabit switches, up to 48 ports. through integrated serdes technology, the device also offers optional support for 1000base-sx/lx gigabit tber standards, on a per port basis, enabling mixed-media gigabit switches. the alaska quad products support the gmii, rgmii, sgmii, tbi, and rtbi phy/mac interface options. the alaska quad transceivers offer the most advanced feature set including vct technology used to diagnose the attached cable plant and isolate and report cable faults with one-meter accuracy. additionally, the devices feature 2-pair downshift capability for plug-and-play operation in 2-pair cable environments, as well the media detect feature which supports both copper and tber media simultaneously. the marvell advantage: the marvell alaska quad gbe transceivers come with a complete set of hardware and software development tools to assist network hardware engineers with product evaluation. marvell?s worldwide teld applications engineers collaborate closely with network equipment vendors to develop and deliver new competitive products to market on time. marvell utilizes recognized world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low cost total solutions. for more information, visit our website at www.marvell.com. fig 3. alaska quad gbe transceiver (88e1141/88E1145) fiber applications diagram fig 2. alaska quad gbe transceiver (88e1141/88E1145) copper applications diagram media types: 1000base-sx 1000base-lx mac interface options: gmii rgmii tbi rtbi serial interface (serdes) ethernet gigabit mac port 0 fiber optics port 0 ethernet gigabit mac port 3 ethernet gigabit mac port 1 fiber optics port 3 fiber optics port 1 alaska quad phy (88e1141/ 88E1145) media types: 10base-t 100base-tx 1000base-t 10/100/1000 mbps ethernet mac port 0 10/100/1000 mbps ethernet mac port 1 10/100/1000 mbps ethernet mac port 3 rj45 port 0 rj45 port 1 rj45 port 3 alaska quad phy (88e1141/ 88E1145) magnetics mac interface options: gmii rgmii sgmii tbi rtbi serial interface (serdes) features benefits ieee 802.3u compliant auto-negotiation automatically contgures to 10, 100 or 1000 mbps active internal hybrids for 1000base-t lower cost magnetics direct drive led support eliminates cost of external led latches and drivers software contgurable led support user-detned led contguration user programmable phy address works with all existing gigabit switch designs loopback mode assists testing and diagnostics
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