Datasheet > MT8924

MT8924

更新时间： 2024-02-11 12:42:50

品牌	Logo	应用领域
MITEL		PC
页数	文件大小	规格书
14页	136K
描述
PCM Conference Circuit (PCC) Preliminary Information

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技术参数
数据手册

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MT8924 技术参数

生命周期：	Obsolete	包装说明：	SOP,
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.84	JESD-30 代码：	R-PDSO-G24
JESD-609代码：	e0	长度：	15.4 mm
功能数量：	1	端子数量：	24
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	2.65 mm
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	CONFERENCING CIRCUIT
温度等级：	COMMERCIAL	端子面层：	TIN LEAD
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.4 mm
Base Number Matches：	1

MT8924 数据手册

MT8924

PCM Conference Circuit (PCC)

Preliminary Information

ISSUE 1

April 1994

Features

Ordering Information

•

Supports up to 10 independent conferences for

up to 32 PCM Voice Channels

MT8924AE

MT8924AS

24 Pin Plastic DIP

24 Pin SOIC

0^°C to +70^°C

ST-BUS compatible 2.048 Mb/s PCM Serial

Interface (also supports 1.536 Mb/s and 1.544

Mb/s data rates)

Description

•

Per channel digital gain control (0/-3/-6 dB)

Parallel microprocessor port for device control

Programmable noise suppression

External Tone Input

The MT8924 is designed to provide conference call

capability in digital switching systems. It allows up to

10 independent conferences to be set for up to 32

PCM voice channels.

Pin selectable A/µ-Law format

Low power CMOS technology

A/µ-Law companded data from the PCM input port is

converted to linear format, processed by a dedicated

arithmetic unit, re-converted to companded format

and then sent to the PCM output port.The PCM

output signal contains all the information of each

channel connected in conference except its own.

Available in 24 Pin PDIP and SOIC packages

Applications

•

Digital PBX / KTS

Conference bridges

Digital C.O. switches

Programmable attenuation and noise suppression

are provided for channels connected in conference

or transparent mode. Additionally, an input for an

external tone is featured that can be used as a signal

to indicate to connected parties that they are on a

conference call.

Overflow

Attenuation/Noise Suppression

Channel RAM

and

Adder

µ/A-Law

Linear

µ/A-Law

Serial-to-Parallel

Conversion

Parallel-to-Serial

Conversion

DSTi

DSTo

PCM Tone

Generator

PCM Mode

Control

Timebase

Control

RESET

Cki F0i Cko

TF TD

RD WR D0-D7 CS C/D

A/µ

Figure 1 - Functional Block Diagram

8-3

12 3 4 5 6 7...14

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与MT8924相关器件

型号	品牌	描述	获取价格	数据表
MT8924-1	MITEL	PCM Conference Circuit (PCC) Preliminary Information	获取价格
MT8924AE	MITEL	PCM Conference Circuit (PCC) Preliminary Information	获取价格
MT8924AS	MITEL	PCM Conference Circuit (PCC) Preliminary Information	获取价格
MT8924ASR	ZARLINK	Conferencing Circuit, CMOS, PDSO24, PLASTIC, SOIC-24	获取价格
MT8926	MITEL	ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monito	获取价格
MT8926AE	ZARLINK	Telecom Circuit, 1-Func, CMOS, PDIP28, PLASTIC, DIP-28	获取价格