Datasheet > MH88422BD-1

MH88422BD-1

更新时间： 2024-09-23 22:11:31

品牌	Logo	应用领域
MITEL		电信集成电路光电二极管
页数	文件大小	规格书
14页	76K
描述
Data Access Arrangement Preliminary Information

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数据手册

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MH88422BD-1 数据手册

MH88422

Data Access Arrangement

Preliminary Information

DS5067

ISSUE 10

November 1998

Features

Ordering Informations

•

FAX and Modem interface (V29)

Variants available with different line

impedances

MH88422-1/2/3

MH88422BD-1

26 Pin DIL Package

•

Provides reinforced barrier to international PTT

requirements

0°C to 70°C

•

Transformerless 2-4 Wire conversion.

Integral Loop Switch

Description

Dial Pulse and DTMF operation

Line state detection outputs

Loop current/ringing outputs

The Mitel MH88422 Data Access Arrangement

(D.A.A.) provides a complete interface between data

transmission equipment and a telephone line. All

functions are integrated into a single thick ﬁlm hybrid

module which provides high voltage isolation, very

high reliability and optimum circuit design needing a

minimum of external components.

Single +5V operation, low on-hook power

(5mW)

•

Full duplex data transmission

Applications

A number of variants are available to meet particular

country impedance requirements. The D.A.A. has

been designed to meet regulatory approvals

requirements in these countries.

Interface to Central Ofﬁce or PABX line for:

•

Modem

FAX

Telemetry

Isolation Barrier

VDD

AGND

Opto-

Logic Input

Buffer

Input Buffer

Line Termination

Isolation

TIP

RING

Opto-

Audio

Buffer

Isolation

TXIN

Transhybrid

loss

cancellation

circuit

Opto-

Isolation

Audio

Buffer

Opto-

Ring & Loop

Buffer

RVLC

RLS

Isolation

User Connections

Network Connections

Figure 1 - Functional Block Diagram

2-13

12 3 4 5 6 7...14

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MH88435AS-PI	MITEL	获取价格	Data Access Arrangement Preliminary Information
MH88435-P	MITEL	获取价格	Data Access Arrangement Preliminary Information
MH88437	MITEL	获取价格	Data Access Arrangement Advance Information