Datasheet > MT8971BE

MT8971BE

更新时间： 2024-09-20 22:51:03

品牌	Logo	应用领域
MITEL		网络接口
页数	文件大小	规格书
20页	393K
描述
ISO2-CMOS ST-BUS⑩ FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit

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数据手册

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MT8971BE 数据手册

ISO²-CMOS ST-BUS FAMILY MT8971B/72B

Digital Subscriber Interface Circuit

Digital Network Interface Circuit

ISSUE 7

May 1995

Features

•

Full duplex transmission over a single twisted

pair

Ordering Information

MT8971BE

22 Pin Plastic DIP

22 Pin Ceramic DIP

28 Pin PLCC

•

Selectable 80 or 160 kbit/s line rate

Adaptive echo cancellation

MT8972BE

MT8972BC

MT8971BP

MT8972BP

Up to 3km (8971B) and 4 km (8972B)

ISDN compatible (2B+D) data format

Transparent modem capability

Frame synchronization and clock extraction

MITEL ST-BUS compatible

28 Pin PLCC

-40°C to +85°C

Description

The MT8971B (DSIC) and MT8972B (DNIC) are

multi-function devices capable of providing high

speed, full duplex digital transmission up to 160

kbit/s over a twisted wire pair. They use adaptive

echo-cancelling techniques and transfer data in

(2B+D) format compatible to the ISDN basic rate.

Several modes of operation allow an easy interface

to digital telecommunication networks including use

as a high speed limited distance modem with data

Low power (typically 50 mW), single 5V supply

Applications

•

Digital subscriber lines

rates up to 160 kbit/s.

Both devices function

•

High speed data transmission over twisted

wires

identically but with the DSIC having a shorter

maximum loop reach specification. The generic

"DNIC" will be used to reference both devices unless

otherwise noted.

•

Digital PABX line cards and telephone sets

80 or 160 kbit/s single chip modem

The MT8971B/72B is fabricated in Mitel’s ISO -

CMOS process.

DSTi/Di

L_OUT

Differentially

Encoded Biphase

Transmitter

Transmit

Filter &

Line Driver

Transmit

Interface

Prescrambler

Scrambler

CDSTi/

CDi

L_OUT

DIS

V_Bias

Transmit

Control

Address

Echo Canceller

Error

Signal

Timing

F0/CLD

MUX

Master Clock

Phase Locked

Precan

C4/TCK

F0o/RCK

MS0

Echo Estimate

Transmit/

Clock

Receive

Timing &

Control

—

-1

Receive

Filter

DPLL

∑

MS1

L_IN

MS2

Sync Detect

Receive

RegC

Status

OSC2

OSC1

DSTo/Do

Differentially

Encoded Biphase

Receiver

De-

Prescrambler

Receive

Interface

Descrambler

CDSTo/

CDo

V_DD

V_SSV_BiasV_Ref

Figure 1 - Functional Block Diagram

9-107

12 3 4 5 6 7...20

中文翻译

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与MT8971BE相关器件

型号	品牌	获取价格	描述	数据表
MT8971BP	MITEL	获取价格	ISO2-CMOS ST-BUS⑩ FAMILY Digital Subscriber I
MT8971BPR	ZARLINK	获取价格	Digital SLIC, 1-Func, CMOS, PQCC28, PLASTIC, LCC-28
MT8972AC	ZARLINK	获取价格	Digital Transmission Interface, Basic, CMOS, CDIP22,
MT8972AE	ZARLINK	获取价格	Digital Transmission Interface, Basic, CMOS, PDIP22,
MT8972AP	ZARLINK	获取价格	Digital Transmission Interface, Basic, CMOS, PQCC28,
MT8972B	MITEL	获取价格	ISO2-CMOS ST-BUS⑩ FAMILY Digital Subscriber I
MT8972BC	MITEL	获取价格	ISO2-CMOS ST-BUS⑩ FAMILY Digital Subscriber I
MT8972BE	MITEL	获取价格	ISO2-CMOS ST-BUS⑩ FAMILY Digital Subscriber I
MT8972BP	MITEL	获取价格	ISO2-CMOS ST-BUS⑩ FAMILY Digital Subscriber I
MT8976	MITEL	获取价格	ISO-CMOS ST-BUS⑩ FAMILY T1/ESF Framer Circuit