MSM7503

更新时间： 2024-01-05 03:41:14

品牌	Logo	应用领域
冲电气 - OKI		解码器编解码器 PC
页数	文件大小	规格书
41页	239K
描述
Multi-Function PCM CODEC

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MSM7503 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	QFP,	针数：	80
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.84	压伸定律：	A/MU-LAW
滤波器：	NO	JESD-30 代码：	R-PQFP-G80
长度：	20 mm	功能数量：	1
端子数量：	80	工作模式：	SYNCHRONOUS
最高工作温度：	70 °C	最低工作温度：	-10 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QFP
封装形状：	RECTANGULAR	封装形式：	FLATPACK
认证状态：	Not Qualified	座面最大高度：	2.5 mm
标称供电电压：	5 V	表面贴装：	YES
电信集成电路类型：	PCM CODEC	温度等级：	COMMERCIAL
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	QUAD	宽度：	14 mm
Base Number Matches：	1

MSM7503 数据手册

E2U0024-16-X2

This version: Jan. 1998

Previous version: Nov. 1996

¡ Semiconductor

MSM7503

¡ Semiconductor

MSM7503

Multi-Function PCM CODEC

GENERAL DESCRIPTION

The MSM7503 is a high performance, low power CODEC LSI device integrating a 2-wire time

division transmission (ping-pong transmission) interface function and has a basic function of

man-machine interface to that of the MSM7502.

The MSM7503 operates from single 5 V power supply and is ideal for digital telephone terminals

such as pushbutton telephone sets and digital PBXs.

The MSM7503 ping-pong transmission interface supports a bidirectional communication of up

to 800 m long on the 2-wire twisted pair line, and can send and receive voice data at 64 kbps and

control data at 16 kbps.

The man-machine interface consists of analog speech path, key-scanner, tone generators,

CODEC meeting the m/A companding law, and processor interface, which are controlled via 8-

bit data buses.

FEATURES

• Single +5 V Power Supply

• Low Power Dissipation

Power ON Mode

Power Down Mode

: 50 mW Typ. 100 mW Max.

: 15 mW Typ. 30 mW Max.

• Pin-Pong Transmission

: Burst of 8 kHz, Transmission of 256 kbps,

AMI coding, 2-wire time division transmission

: Transmit Start bit (1 bit), K-bit (1 bit),

Control bit (2 bits), Voice bit (8 bits),

DCbalancebit(1bit), totalling13bits

Receive Sync bit (4 bits), K-bit (1 bit),

Control bit (2 bits), Voice bit (8 bits),

DCbalancebit(1bit), totalling16bits

• Transmission data configuration

• Control Data Interface supports synchronous and asynchronous communications

• Built-in Power-on Reset by the power supply voltage monitoring

• Output of the ping-pong transmission monitoring signal

• CODEC complied by the ITU-T companding law

• Calling Tone Interval

: Controlled by processor

• Calling Tone Combination

• Calling Tone Volume

• Ringing Tone Interval

: Controlled by processor, 6 modes

: Controlled by processor, 4 modes

: Controlled by processor

• Ringing Tone Frequency

• Ringing Tone Level

: Controlled by processor, 6 modes

: Controlled by processor, 4 levels

• Built-in PB Tone Generator

• Built-in Speech path Control Switches

• General Latch Output for External Control : 2 bits

• Watch-dog Timer : 500 ms

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