Datasheet > Alaska C 7120

Alaska C 7120

更新时间： 2024-03-03 10:11:24

品牌	Logo	应用领域
迈威 - MARVELL		以太网
页数	文件大小	规格书
2页	83K
描述
双端口 400G 以太网Retimer，四端口 200G、8 端口 10G、16 端口 50G/25G PHY/Retimer

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数据手册

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Alaska C 7120 数据手册

Product Brief

Marvell^®ALASKA C 88X7120

Dual 400G, Quad 200G, Octal 100G, 16 port 50G/25G Ethernet Transceiver

Overview

The Marvell Alaska C 88X7120 is a fully integrated single chip

Ethernet transceiver that performs retiming functionality for two

ports of 400GbE, and PHY/retiming functionality for four ports of

200GbE, 8 ports of 100GbE or 16 ports of 50GbE, 25GbE, 10GbE

and 1GbE. The device supports full duplex transmission at all

supported speeds, over a variety of media including optics, passive

direct attach cables and copper backplanes.

802.3ba, 802.3by and 25G consortium for 200GbE, 100GbE,

50GbE, 40GbE, and 25GbE.

The supported FEC types include Clause-134 RS(544,514), FEC

Clause-91 and Clause-108 RS(528,514) FEC and FC(2212,2080)

FEC. This device also supports Auto-negotiation and coefﬁ cient

training protocol required by the IEEE 802.3 to support

operation over KR backplanes and CR passive copper cables.

The device also supports the gearboxing modes to translate

between NRZ and PAM4 modes for 50G and 100G Ethernet,

with the necessary FEC termination and regeneration required

to translate between NRZ and PAM4 operation.

The 88X7120 has a fully symmetric architecture with Long

Reach serdes, FEC generation and termination functionality,

and Autonegotiation and training capabilities on both host and

line interfaces to provide complete system design ﬂ exibility.

The 88X7120 integrates Long Reach dual mode (PAM4 and

NRZ) SerDes, fully compliant to the IEEE electrical speciﬁ

cations for transmission over passive direct attach 802.3bs,

cables and copper backplanes.

It can also operate as a 16 port protocol agnostic transparent

retimer in which the digital logic associated with the PCS and

FEC functionalities are bypassed, and powered down for a low

latency, low power operation. The transparent mode is support

for both PAM4 and NRZ signaling.

The device supports FEC generation and termination capabilities

for all FEC types deﬁned by IEEE 802.3bs, 802.3cd, 802.3bj,

Block Diagram

16x56G PAM4/25G/10G NRZ

CR/KR capable Long Reach 50G-PAM4, 25G-NRZ SerDes

Auto-Negotiation Coefﬁcient Training

200GbE/100GbE/50GbE/40GbE/25GbE/10GbE/1GbE PCS +FEC

MDIO

JTAG

SyncE

LED

Auto-Negotiation

Coefﬁcient Training

CR/KR capable Long Reach 50G-PAM4, 25G-NRZ SerDes

16x56G PAM4/25G/10G NRZ

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