区域架构和优化区域间链路成本和功率的新机会.pdf

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1、Zonal Architecture and New Opportunities to Optimize the Cost and Power of Interzonal Links Alireza Razavi,Ragnar Jonsson,David Shen|MarvellIEEE SA Ethernet&IP Automotive Technology Day19-20 September 2023,So Paulo,Brazil 2023 Marvell.All rights reserved.2Point to point,rigid,expensiveDomainsEtherne

2、tNetworked,secure,scalable,intelligentZonesDomain-based vs.zonal architecture 2023 Marvell.All rights reserved.3DomainsPoint-to-point links are longZonal links are shorterZonesEthernetInterzonal links are short 2023 Marvell.All rights reserved.4Point-to-point vs.interzonal link attributesPoint-to-po

3、int15m:1000/2.5G/5G/10GBASE-T111m:25GBASE-T1 Up to four inline connectorsInterzonalMuch shorter(less than 5m)Fewer inline connectorsSensorProcessor15m cableSensorBridge 2023 Marvell.All rights reserved.5Short-reach interzonal links ideal for camera-bridgeCamera Bridge is subject of recent 802.3 stud

4、y groupBridge 2023 Marvell.All rights reserved.6Typical full-duplex linkCoderEqualizer/coderAnalog to digital convertorDigital to analog convertorEcho cancelerTransmitbitsReceivedbitsHybridLink partner 2023 Marvell.All rights reserved.7What we want to optimize Power consumptionSilicon area(cost)Lowe

5、r power and area means lower complexity 2023 Marvell.All rights reserved.815mLower insertion loss=simpler equalizationSource:Marvell5m 2023 Marvell.All rights reserved.9Lower insertion loss=less echo cancelation neededSource:Marvell 2023 Marvell.All rights reserved.10Shorter echo duration=simpler ec

6、ho cancelers15m cableSensorProcessorBridgeSensor 2023 Marvell.All rights reserved.11How can we take advantage of the shorter link?Enjoy higher design margin1Use less expensive cable2ORReduce PHY power and/or area3OR 2023 Marvell.All rights reserved.12Use less expensive cableCoderEqualizer/decoderADC