Datasheet > MH88634

MH88634

更新时间： 2024-09-23 22:46:15

品牌	Logo	应用领域
MITEL		/
页数	文件大小	规格书
8页	66K
描述
Central Office Interface Circuit Preliminary Information

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MH88634 数据手册

MH88634

Central Office Interface Circuit

Preliminary Information

ISSUE 2

April 1995

Features

Ordering Information

MH88634-2 21 Pin SIL Package

•

Loop Start Trunk Interface

600 ohm input impedance, -2 variant

Line state detection outputs: forward loop,

reverse loop, ringing voltage, switch hook

On-hook reception

0°C to 70°C

•

Transformerless 2W to 4W conversion

One loop start relay driver

+/- 5V operation

Description

Small footprint area (<4.75cm²)

The Mitel MH88634 Central Office Trunk Interface

circuit provides a complete audio and signalling link

between audio switching equipment and a central

office. The functions provided by the MH88634

include 2-4 Wire conversion, 600 ohm input

impedance and network balance. The device is

fabricated as a thick film hybrid incorporating various

technologies for optimum circuit design and very

high reliability.

Applications

Interface to Central Office for:

•

PABX

Key Telephone Systems

Channel Bank

Voice Mail

Terminal Equipment

Digital Loop Carrier

Optical Multiplexer

RING

TIP

VDD VEE AGND RV

RL SHK

Dummy

Ringer

Status

Detection

XLA

XLB

XLC

XLD

Receive

Gain

Loop

Termination

2-4 Wire Hybrid

LRC

LRD

Loop Relay

Driver

Transmit

Gain

Network

Balance

Impedance

Matching

VRLY

RGND

Figure 1 - Functional Block Diagram

2-253

12 3 4 5 6 7 8

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与MH88634相关器件

型号	品牌	获取价格	描述	数据表
MH88634-2	MITEL	获取价格	Central Office Interface Circuit Preliminary Information
MH88634B	MITEL	获取价格	Central Office Interface Circuit Advance Information
MH88634BT-2	MITEL	获取价格	Central Office Interface Circuit Advance Information
MH88634BV-2	MITEL	获取价格	Central Office Interface Circuit Advance Information
MH88634BV-2	ZARLINK	获取价格	SLIC, Hybrid, SIP-21
MH88634BV-21	ZARLINK	获取价格	SLIC, LEAD FREE, SIP-21
MH88634BV-4	MITEL	获取价格	Central Office Interface Circuit Advance Information
MH88634BV-K	MICROSEMI	获取价格	SLIC, Hybrid, PSIP21,
MH88634BV-K	ZARLINK	获取价格	Analog Transmission Interface, Hybrid,
MH88634CV-K	ZARLINK	获取价格	Central Office Interface Circuit