Datasheet > MH88620IN

MH88620IN

更新时间： 2024-09-22 22:36:51

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
14页	151K
描述
C.O. SLIC Preliminary Information

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MH88620IN 数据手册

MH88620IN

C.O. SLIC

Preliminary Information

ISSUE 3

April 1995

Features

Ordering Information

•

600 ohm input impedance

MH88620IN

40 Pin SIL Package

Externally selectable network balances

Transformerless 2-4 wire conversion

Programmable constant resistance feed

Off-hook and dial pulse detection

0°C to 70°C

High immunity to externally induced longitudinal

currents

•

Auto ring trip

Description

On-hook transmission (ANI) capability

Minimum protection circuitry required

The Mitel MH88620IN SLIC provides all of the

functions required to interface 2-wire off premise

subscriber loops to a serial TDM, PCM, switching

network of a modern PBX. The MH88620IN is

manufactured using thick film hybrid technology

which offers high voltage capability, reliability and

high density resulting in significant printed circuit

board area savings. A complete line card can be

implemented with very few external components.

Compatible with requirements of CDOT DOC/

FCC, CSA/UL,CCITT

•

Excellent power dissipation (SIL vertical

mounting)

Applications

•

On/Off-Premise PBX Line Cards

Central Office Line Cards

VEE

AGND

VBat

LGND

VDD

LCA

Switch-Hook

Threshold Set

RING

RF1

RF2

TIP

Loop

Current

Set

Driver

Matched

Feed

Resistors

Circuitry

and

Speech

Ring

Filter

Switch-Hook

Detect

Circuit

SHK

TF1

TF2

2W/4W

conversion

Impedance

Network

Auto Ring

Trip

Test Relay

Driver

Ring Relay

Driver

Gain Adjust

TRD

RRD

GRX0

GTX0

GTX1 TX

RGND

VRLY

TRC

GRX1

RNGC

Figure 3 - Functional Block Diagram

2-159

12 3 4 5 6 7...14

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