AV1887M View Datasheet(PDF) - Integrated Circuit Systems

Part Name

Description

Manufacturer

AV1887M

FDDI / Fast Ethernet PHYceiver™

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS1887

FDDI / Fast Ethernet PHYceiverTM

General Description

Features

The ICS1887 is designed to provide high performance clock • Single IC solution to existing designs requiring

recovery and generation for 125 MHz serial data streams. The

multiple devices

ICS1887 is ideally suited for LAN transceiver applications in • Data and clock recovery for 125 MBaud FDDI or Fast

either FDDI or Fast Ethernet environments. The ICS1887

Ethernet applications

converts NRZ to/from NRZI data in addition to providing a • Clock multiplication from either a crystal, differential

5-bit parallel digital data transmit and receive interface.

or single-ended timing source

Clock and data recovery is performed on an input serial data • Continuous clock in the absence of data

stream or the buffered transmit data depending upon the state • No external PLL components

of the loopback input. A continuous clock source will • Lock/Loss status indicator output

continue to be present even in the absence of input data. • Loopback mode for system diagnostics

All internal timing is derived from either a low cost crystal,

differential or single-ended source.

•

Selectable loop timing mode

• PECL driver with settable sink current

The ICS1887 utilizes advanced CMOS phase-locked loop • Parallel digital transmit and receive data interface

technology which combines high performance and low power • NRZ to/from NRZI data conversion

at a greatly reduced cost.

• Consult ICS for optional configurations and data rates

Block Diagram

Pin Configuration

ICS1887RevF112596

28-Pin SOIC

PHYceiver is a trademark of Integrated Circuit Systems, Inc.

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