CS61884-IQZ Cirrus Logic Inc, CS61884-IQZ Datasheet

CS61884-IQZ

Manufacturer Part Number

CS61884-IQZ

Description

IC,PCM TRANSCEIVER,OCTAL,CEPT PCM-30/E-1,QFP,144PIN,PLASTIC

Manufacturer

Cirrus Logic Inc

Datasheets

1.CS61884-IQZ.pdf (71 pages)

2.CS61884-IQZ.pdf (71 pages)

Specifications of CS61884-IQZ

Rohs Compliant

YES

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Features

ORDERING INFORMATION

http://www.cirrus.com

Industry-standard Footprint

Octal E1/T1/J1 Short-haul Line Interface Unit

Low Power

No external component changes for

100 Ω/120 Ω/75 Ω operation.

Pulse shapes can be customized by the user.

Internal AMI, B8ZS, or HDB3 Encoding/Decoding

LOS Detection per T1.231, ITU G.775, 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 (<50mA)

TX Drivers with Fast High-Z and Power Down

JTAG boundary scan compliant to IEEE 1149.1.

144-Pin LQFP or 160-Pin BGA Package

CS61884-IQ

CS61884-IQZ

CS61884-IB

JTAG

Serial

Port

LOS

RCLK

RPOS

RNEG

TCLK

TPOS

TNEG

Octal T1/E1/J1 Line Interface Unit

144-pin LQFP

144-pin LQFP, Lead Free

160-pin FBGA

Attenuator

Jitter

JTAG Interface

Recovery

Transmit

Control

LOS

Clock

Description

The CS61884 is a full-featured octal E1/T1/J1 short-haul

LIU that supports both 1.544 Mbps or 2.048 Mbps data

transmission. Each channel provides crystal-less jitter

attenuation that complies with the most stringent stan-

dards.

AMI/B8ZS/HDB3 encoding/decoding. To support en-

hanced 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 CS61884 makes use of ultra-low-power, matched-

impedance 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

Data

Each

Receiver

Driver

channel

also

CS61884

provides

Serial/Parallel

RTIP

RRING

TTIP

TRING

Port

Host

DS485F1

AUG ‘05

internal

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