CS61880-IQZ Cirrus Logic Inc, CS61880-IQZ Datasheet

CS61880-IQZ

Manufacturer Part Number

CS61880-IQZ

Description

IC Octal E1 Line Interface Unit

Manufacturer

Cirrus Logic Inc

Datasheet

1.CS61880-IQZ.pdf (70 pages)

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BOSTOCK HK LIMITED

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CS61880-IQZ

Manufacturer:

Cirrus Logic Inc

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Euro Chip Distribution

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Features

ORDERING INFORMATION

Preliminary Product Information

http://www.cirrus.com

Octal E1 Short-haul Line Interface Unit

Low Power

No External Component Changes for 120

Operation

Pulse Shapes can be customized by the user

Internal AMI, or HDB3 Encoding/Decoding

LOS Detection per ITU G.775 or ETSI 300- 233

G.772 Non-Intrusive Monitoring

G.703 BITS Clock Recovery

Crystal-less Jitter Attenuation

Serial/Parallel Microprocessor Control Interfaces

Transmitter Short Circuit Current Limiter (<50 mA)

TX Drivers with Fast High-Z and Power Down

JTAG Boundary Scan compliant to IEEE 1149.1

144-Pin LQFP or 160-Pin FBGA Package

CS61880-IQ

CS61880-IB

JTAG

Serial

Port

LOS

RCLK

RPOS

RNEG

TCLK

TPOS

TNEG

Octal E1 Line Interface Unit

Attenuator

144-pin LQFP

160-pin FBGA

Jitter

JTAG Interface

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

/ 75

Recovery

Transmit

Control

LOS

Clock

Cirrus Logic, Inc. 2003

Description

The CS61880 is a full-featured Octal E1 short-haul LIU

that supports 2.048 Mbps data transmission for both E1

crystal-less jitter attenuation that complies with the most

stringent standards. Each channel also provides internal

AMI/HDB3 encoding/decoding. To support enhanced

system diagnostics, channel zero can be configured for

G.772 non-intrusive monitoring of any of the other 7

channels’ receive or transmit paths.

The CS61880 makes use of ultra low power matched im-

pedance transmitters and receivers to reduce power

beyond that achieved by traditional driver designs. By

achieving a more precise line match, this technique also

provides superior return loss characteristics. Additional-

ly, the internal line matching circuitry reduces the

external component count. All transmitters have controls

for independent power down and High-Z.

Each receiver provides reliable data recovery with over

12 dB of cable attenuation. The receiver also incorpo-

rates LOS detection compliant to the most recent

specifications.

Host Interface

Recovery

Shaper

Pulse

and E1 120

Data

Receiver

Driver

applications. Each channel provides

CS61880

Serial/Parallel

RTIP

RRING

TTIP

TRING

Port

Host

DS450PP3

JUL ‘03

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