Datasheet > MH88510

MH88510

更新时间： 2024-09-23 22:46:15

品牌	Logo	应用领域
MITEL		电池电信集成电路
页数	文件大小	规格书
10页	133K
描述
Subscriber Line Interface Circuit (SLIC) Preliminary Information

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MH88510 数据手册

MH88510/11

Subscriber Line Interface Circuit (SLIC)

Preliminary Information

ISSUE 1

April 1995

Features

Ordering Information

•

High Gain version MH88511

Compatible with popular MH88500

Operates with a wide range of battery voltages

Constant current battery feed

Dry line compatible

MH88510

MH88511

20 Pin SIL Package

0°C to 70°C

Overvoltage and short circuit protection

Ringing Feed

Description

Off-hook detection and LED indicator drive

Dial pulse detection

The Mitel MH88510/11 Subscriber Line Interface

Circuit provides a complete interface between the

telephone line and a speech switch requiring only

single bidirectional switch per crosspoint. The

functions provided by the MH88510/11 include

bidirectional differential to single ended conversion

in the speech path, line battery feed, ringing feed

and loop and dial pulse detection. The device is

fabricated as a thick film hybrid which incorporates

various technologies for optimum circuit board and

very high reliability.

Ring trip filter with auto ring trip

Relay driver

Transformerless 2-2 wire conversion

Low power consumption

Mute of incoming audio

Few external components

Applications

•

Line Interface for:

PABX

Intercoms

Key Systems

Constant

Tip

Drive

Current/Voltage

Control

TIP

MUTE

JUNC

2-2 Wire

Hybrid

Current &

Voltage

Sensing

Ring Trip

Filter

RING

Relay

Line

Ring Short

Protection

Driver

Supervision

RGND

RRD

VRLY

VBAT

RRC

AGND

SHK

VDD VEE

LED

Figure 1 - Functional Block Diagram

2-53

12 3 4 5 6 7...10

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