MSM7731-01

更新时间： 2024-02-14 10:11:50

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
43页	247K
描述
Multifunction PCM CODEC (Voice Signal Processor)

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MSM7731-01 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	QFP,	针数：	64
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.75	Is Samacsys：	N
压伸定律：	MU-LAW	滤波器：	YES
JESD-30 代码：	S-PQFP-G64	长度：	14 mm
功能数量：	1	端子数量：	64
工作模式：	SYNCHRONOUS	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP	封装形状：	SQUARE
封装形式：	FLATPACK	认证状态：	Not Qualified
座面最大高度：	2.4 mm	标称供电电压：	3 V
表面贴装：	YES	电信集成电路类型：	PCM CODEC
温度等级：	INDUSTRIAL	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

MSM7731-01 数据手册

E2U0060-18-84

Preliminary

This version: Aug. 1998

MSM7731-01

¡ Semiconductor

MSM7731-01

Multifunction PCM CODEC (Voice Signal Processor)

GENERAL DESCRIPTION

The MSM7731 is an LSI device developed for portable, handsfree communication with built-in

line echo canceler, acoustic echo canceler, and transmission signal noise canceler. Built-in to the

voicesignalinterfaceisalinearCODECfortheanaloginterfaceontheacoustic-side, andalinear

CODEC for the analog interface on the line-side. On the line-side, in addition to the analog

interface, there is also a m-law PCM/16-bit linear digital interface.

Equipped with gain and mute controls for data transmission and reception, a m-law PCM/16-

bit linear digital interface for memo recording and message output, and transfer clock and sync

clock generators for digital communication, this device is ideally suited for a handsfree system.

FEATURES

• Single 3 V power supply operation (2.7 V to 3.6 V)

• Built-in 2-channel (line and acoustic) echo canceler

Echo attenuation : 35 dB (typ.)

Cancelable echo delay time :

Line echo canceler + acoustic echo canceler : Tlined = 27 ms (max.),

Tacoud = 59 ms – Tlined (max.)

Tacoud = 59 ms (max.)

Acoustic echo canceler only :

• Built-in transmission signal noise canceler

Noise attenuation: 13 dB (typ.) for white noise

40 dB (typ.) for single tone

• Built-in 2-channel CODEC

Synchronous transmission and reception enables full duplex operation

• Built-in analog input gain amp stage (max. gain = 30 dB)

• Analog output configuration: Push-pull drive (can drive a 1.2 kW load)

• Built-in transmit slope filter

• Digital interface coding formats:

• Digital interface sync formats:

m-law PCM, 16-bit linear (2's complement)

Normal-sync, short-frame-sync

• Built-in digital transmission clock generators

Sync clock (SYNC):

8 kHz output

Transmission clock (BCLK): 64 kHz output (m-law PCM)/128 kHz

output (16-bit linear)

• Digital transmission rate

External input:

Internal generation:

64 kbps to 2048 kbps

64 kbps (m-law PCM)/128 kbps (16-bit linear)

• Fixed digital interface sync clock (SYNC) enables automatic power-down

• Master clock frequency: 19.2 MHz

Compatible with crystal oscillator and crystal

• Low power consumption

Operating mode:

typ. 105mW (when V

typ. 0.3mW (when V

= 3.0 V)

Power-down mode:

• Control by both the serial microcomputer interface and parallel port is possible

• Transmit/receive mute function, transmit/receive programmable gain setting

• Package: 64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name: MSM7731-01GA)

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与MSM7731-01相关器件

型号	品牌	描述	获取价格	数据表
MSM7731-01GA	OKI	PCM Codec, MU-Law, 1-Func, PQFP64, 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64	获取价格
MSM7731-02	OKI	Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free	获取价格
MSM7731-02GA	OKI	Telecom Circuit, 1-Func, CMOS, PQFP64, 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64	获取价格
MSM7732-01	OKI	Audio CODEC	获取价格
MSM7732-01LA	OKI	Audio CODEC	获取价格
MSM7732-01LB	OKI	Audio CODEC	获取价格

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