Datasheet > MT91610AQ

MT91610AQ

更新时间： 2024-11-29 22:36:47

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
18页	70K
描述
Analog Ringing SLIC

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MT91610AQ 数据手册

MT91610

Analog Ringing SLIC

Preliminary Information

DS5181

ISSUE 2

February 2000

Features

•

Transformerless 2W to 4W conversion

Controls battery feed to line

Package Information

Programmable line impedance

Programmable network balance impedance

Off-hook and dial pulse detection

Protects against GND short circuit

Programmable gain

MT91610AQ

36 Pin QSOP Package

-40°C to +85°C

Programmable constant current mode with

constant voltage fold over

Description

•

Transformerless balanced ringing with

automatic ring trip circuit. No mechanical relay

The Mitel MT91610, with an external bipolar driver

(Figure 4), provides an interface between a switching

system and a subscriber loop. The functions

provided by the MT91610 include battery feed,

programmable constant current with constant voltage

fold over for long loop, 2W to 4W conversion, off-

hook and dial pulse detection, direct balance ringing

with built in ring tripping, unbalance detection, user

deﬁnable line and network balance impedance’s and

gain, and power down and wake up. The device is

fabricated as a CMOS circuit in a 36 pin QSOP

package.

•

Supports low voltage ringing

Line polarity reversal

On-hook transmission

Power down and wake up capability

Meter pulse injection

Ground Key detection

Applications

Line interface for:

•

PABX

Intercoms

Key Telephone Systems

Control Systems

GTX1 ESE

ESI GTX0

Audio Gain & Network

Balance Circuit

Tip/Ring Drive

Controller

Line Sense

TIP

2 W to 4 W

Conversion & Line

Impedance

RING

RF1, RF2

CP5

Over-Current

Protection Circuit

Line

Reverse

Driver

Ring Drive

Controller

Loop Supervision

CP4

CP6

CP7

Figure 1 - Functional Block Diagram

12 3 4 5 6 7...18

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