Datasheet > Alaska G 1781

Alaska G 1781

更新时间： 2024-10-31 17:15:03

品牌	Logo	应用领域
迈威 - MARVELL		局域网（LAN）标准
页数	文件大小	规格书
2页	93K
描述
Octal 10/100/1000 Mbps Energy Efficient Ethernet Transceiver with Time-Sensitive Networking Support

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Alaska G 1781 数据手册

Product Brief

Marvell^®E1781

Integrated Octal 10/100/1000 Mbps Energy Efﬁcient Ethernet Transceiver with Time-

Sensitive Networking Support

Overview

The latest generation Alaska family of single-chip devices

contains eight independent Gigabit Ethernet transceivers on a

single monolithic IC. Each transceiver performs all the physical

layer functions for 1000BASE-T and 100BASE-TX full or

half-duplex Ethernet on CAT 5 twisted pair cable, and 10BASE-T

full or half-duplex Ethernet on CAT 3, 4, and 5 cable.

The device supports Auto-MDI/MDIX at all three speeds to

enable easier installation and reduced installation costs.

The device uses advanced mixed-signal processing to perform

equalization, echo and crosstalk cancellation, data recovery, and

error correction at a gigabit per second data rate. The device

dissipates very low power while achieving robust performance

in noisy environments.

The Alaska E1781 device supports the Universal Serial Gigabit

Media Independent Interface (USGMII) for direct connection to

a MAC/Switch port. The USGMII combines eight ports of SGMII

running at 1.25 Gbps onto a single differential pair of signals

operating at 10 Gbps. USGMII primarily decreases the number

of I/O pins on the MAC interface compared to the SGMII and

lowers the overall power consumption. The device supports one

USGMII port to connect the eight copper ports to the MAC

device.

The E1781 device supports Synchronous Ethernet (SyncE) and

Precise Timing Protocol (PTP) Time Stamping with enhanced

resolution, through a Packet Control Header (PCH), which

complies with the USGMII speciﬁcation.

The E1781 device also supports an integrated Advanced Virtual

Cable Tester® (VCT™) enabling fault detection and advanced

cable performance monitoring.

The device supports IEEE 802.3az Energy Efﬁcient Ethernet

(EEE) and is IEEE 802.3az compliant.

The E1781 is available in two different package options

The device integrates MDI interface termination resistors and

capacitors into the PHY. This resistor integration simpliﬁes

board layout and lowers board cost by reducing the number of

external components. The new Marvell® calibrated resistor

scheme will achieve and exceed the accuracy requirements of

the IEEE 802.3 return loss speciﬁcations. The device exhibits

ultra-low power consumption. This reduces the overall system

cost by reducing or eliminating heat-sink and air-ﬂow

requirements.

• 128-pin wire-bond LQFP 22mm x 16mm

• 289-pin FCBGA 14mm x 14mm optimized for thermal

performance.

The device is fully compliant with the IEEE 802.3 standard. it

includes the PMD, PMA, and PCS sublayers. The device performs

PAM5, 8B/10B, 4B/5B, MLT-3, NRZI, and Manchester encoding/

decoding; digital clock/data recovery; stream cipher scrambling/

descrambling; digital adaptive equalization for the receiver data

path as well as digital ﬁltering for pulse-shaping for the line

transmitter; and Auto-Negotiation and management functions.

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与Alaska G 1781相关器件

型号	品牌	获取价格	描述	数据表
Alaska M 2540	MARVELL	获取价格	A quad-port, 5-speedmGig5G, 10M/100M/1G/2.5G/5G PHY data rates over Cat5e cables
Alaska M 2580	MARVELL	获取价格	Octal-port, 5-speed PHY operating at 10M, 100M, 1000M, 2.5G, 5G data rates, MP-USXGMII/XFI
Alaska M 3340P/3310P	MARVELL	获取价格	10 GbE, Quad_Single Port mGig10G, 10M/100M/1G/2.5G/5G/10G PHY, PTP, EEE, RXAUI/XFI/XGMII t
Alaska M 3540	MARVELL	获取价格	A quad-port, 6-speedmGig10G, 10M/100M/1G/2.5G/5G/10G PHY data rates, MP-USXGMII/XFI to Cu
Alaska M 3580	MARVELL	获取价格	Octal-port, 6-speed PHY operating at 10M, 100M, 1000M, 2.5G, 5G, 10G data rates, MP-USXGMI
Alaska M 414C	MARVELL	获取价格	Quad port,mGig5G, 10M/100M/1G/2.5G/5G PHY
Alaska M 415C	MARVELL	获取价格	Quad port,mGig2.5G, 10M/100M/1G/2.5G PHY
Alaska M 814	MARVELL	获取价格	Octal port,mGig5G, 10M/100M/1G/2.5G/5G PHY
Alaska M 815	MARVELL	获取价格	Octal port,mGig2.5G, 10M/100M/1G/2.5G PHY
AL-B-04-0	POMONA	获取价格	Interconnection Device

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