MSM7719-01

更新时间： 2024-01-08 15:19:00

品牌	Logo	应用领域
冲电气 - OKI		转换器 PC
页数	文件大小	规格书
40页	217K
描述
Echo Canceler with ADPCM Transcoder

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技术参数
数据手册

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MSM7719-01 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	QFP, TQFP100,.63SQ	Reach Compliance Code：	unknown
风险等级：	5.92	压伸定律：	MU-LAW
滤波器：	YES	最大增益公差：	1 dB
JESD-30 代码：	S-PQFP-G100	JESD-609代码：	e0
线性编码：	NOT AVAILABLE	功能数量：	1
端子数量：	100	最高工作温度：	70 °C
最低工作温度：	-25 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP	封装等效代码：	TQFP100,.63SQ
封装形状：	SQUARE	封装形式：	FLATPACK
电源：	5 V	认证状态：	Not Qualified
子类别：	Codecs	最大压摆率：	80 mA
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	PCM CODEC
温度等级：	OTHER	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	Base Number Matches：	1

MSM7719-01 数据手册

E2U0058-18-85

This version: Aug. 1998

MSM7719-01

¡ Semiconductor

MSM7719-01

Echo Canceler with ADPCM Transcoder

GENERAL DESCRIPTION

The MSM7719, developed for PHS (Personal Handyphone System) applications, is an LSI device

and contains a line echo canceler, an acoustic echo canceler (for handsfree conversation), and

a single channel full-duplex ADPCM transcoder.

This device includes DTMF tone and several types of tone generation, transmit/receive data mute

and gain control, and VOX function and is best suited for PHS applications.

FEATURES

• Single 5 V power supply

• ADPCM :

• PCM interface coding format :

: 4.5 V to 5.5 V

ITU-T Recommendations G.726

µ-law

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

Line echo canceler

Acoustic echo canceler (for handsfree conversation)

Echo attenuation : 30 dB (typ.)

Cancelable echo delay time :

27 ms (max.) for line echo canceler +27 ms (max.) for acoustic echo canceler

Line echo canceler mode only :

54 ms (max.)

• Serial PCM/ADPCM transmission data rate : 64 kbps to 2048 kbps

• Low supply current

Operating mode :

Power-down mode :

• Master clock frequency :

Typically 50 mA (V = 5.0 V)

Typically 0.2 mA (V = 5.0 V)

9.6 to 10.0 MHz/19.2 to 20.0 MHz

• Transmit/receive mute, transmit/receive programmable gain control

• Built-in DTMF tone generator and various tones generator

• Control through parallel microcontroller interface

Pin control available for line and acoustic echo cancelers

• Built-in VOX control

Transmit side :

Receive side :

Voice/silence detect

Background noise generation at the absence of voice signal

• Package:

100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name : MSM7719-01TS-K)

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