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KS8001 Datasheet

IC型号：
KS8001
PDF描述：
Micrel Semiconductor [1.8V, 3.3V 10/100BASETX/FX Physical L...
文件大小：
623.79KB
芯片厂家：
MICREL

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KS8001

1.8V, 3.3V 10/100BASETX/FX

Physical Layer Transceiver

DATASHEET V 1.01

General Description

The KS8001 is a 10BASE-T/100BASE-TX/FX Physical

Layer Transceiver, operating the core at 1.8 volts to meet

low voltage and low power requirements. The solution

provides MII/RMII/SMII interfaces to transmit and receive

data.

A unique mixed-signal design extends signaling

distance while reducing power consumption.

HP Auto MDI/MDI-X provides the most robust solution for

eliminating the need to differentiate between crossover and

straight-through cables.

Featuring LinkMD cable diagnostics, which allows

detection of common cabling plant problems such as open

and short circuits, the KS8001 represents a new level of

features and performance and is an ideal choice of

physical layer transceiver for 100BASE-TX/10BASE-

T/100BASE-FX applications.

Features

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Single chip 100BASE-TX/100BASE-FX/10BASE-T

physical layer solution

1.8V CMOS design, power consumption 250 mW

Robust (130m+) operation over standard cables

Supports Media Independent Interface (MII), Reduced

MII (RMII), and Serial MII (SMII)

LinkMD feature to determine cable length and

diagnose faulty cables up 200 m with +/- 2 m accuracy

Supports HP MDI/MDI-X auto crossover

Supports power down mode and power saving mode

MDC/MDIO to 12.5 MHz for rapid configuration

Fully compliant to IEEE 802.3u standard

Supports auto-negotiation and manual selection for

10/100Mbps speed and full / half-duplex mode

Functional Diagram

NRZ/NRZI

MLT3 ENCODER

4B/5B ENCODER

SCRAMBLER

PARALLEL/SERIAL

TX+

TX-

TRANSMITTER

10/100

PULSE

SHAPER

PARALLEL/SERIAL

MANCHESTER ENCODER

RX+

RX-

ADAPTIVE EQ

BASELINE WANDER

CORRECTION

MLT3 DECODER

NRZI/NRZ

CLOCK

RECOVERY

4B/5B DECODER

DESCRAMBLER

SERIAL/PARALLEL

MII/RMII/SMII

REGISTERS

AND

CONTROLLER

INTERFACE

AUTO

NEGOTIATION

10BASE-T

RECEIVER

MANCHESTER DECODER

SERIAL/PARALLEL

TXD3

TXD2

TXD1

TXD0

TXER

TXC

TXEN

CRS

COL

MDIO

MDC

RXD3

RXD2

RXD1

RXD0

RXER

RXDV

RXC

POWER DOWN/

POWER SAVING

LINK

LED

DRIVER

XI

XO

COL

FDX

SPD

PLL

PWRDWN

Micrel, Inc.

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1849 Fortune Drive

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San Jose, CA 95131

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USA

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tel + 1 (408) 944-0800

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fax + 1 (408) 944-0970

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http://www.micrel.com

May 2005

KS8001

MICREL CONFIDENTIAL. DO NOT DISTRIBUTE.

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