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MSM7580 PDF预览

MSM7580

更新时间: 2024-02-28 13:10:31
品牌 Logo 应用领域
冲电气 - OKI 转换器PC
页数 文件大小 规格书
18页 207K
描述
ITU-T G.721 ADPCM TRANSCODER

MSM7580 技术参数

生命周期:Transferred零件包装代码:SOIC
包装说明:SOP,针数:28
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.42其他特性:FULL DUPLEX
压伸定律:A/MU-LAW滤波器:NO
JESD-30 代码:R-PDSO-G28长度:18.5 mm
功能数量:1端子数量:28
工作模式:SYNCHRONOUS最高工作温度:80 °C
最低工作温度:-30 °C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:2.5 mm最大压摆率:10 mA
标称供电电压:5 V表面贴装:YES
电信集成电路类型:ADPCM CODEC温度等级:COMMERCIAL EXTENDED
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:8.8 mm
Base Number Matches:1

MSM7580 数据手册

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E2U0031-39-61  
This version: Jun. 1999  
Previous version: Aug. 1998  
¡ Semiconductor  
MSM7580  
ITU-T G.721 ADPCM TRANSCODER  
GENERAL DESCRIPTION  
The MSM7580 is an ADPCM transcoder which is used by the new digital cordless system. It  
converts 64 kbps voice PCM serial data to 32 kbps ITU-T G.721 ADPCM serial data, and vice  
versa.  
This device consists of two systems with full-duplex voice data channels and a data-through  
mode.  
The MSM7580 provides cost effective solutions for digital cordless office telephone systems  
which are incorporated into PABXs and for the public base stations which are connected to the  
central office through digital PSTNs.  
FEATURES  
• Conforms to ITU-T G.721  
• Built-in Full-duplex Transcoder with Two Data channels  
• PCM companding Law: A-law/µ-law selectable  
• Synchronized Operation between coder and decoder, and between two channels.  
• Serial PCM Data Transmission Speed: 64 kbps to 2048 kbps  
• Serial ADPCM Data Transmission Speed: 32 kbps to 2048 kbps  
• Hardware Reset – ITU-T G.721 Optional Reset – for each channel  
• Power Down Control for each channel  
• Decoder (ADPCM Æ PCM ) MUTE Mode and PAD Mode for each channel  
• ADPCM Data-through Mode  
• Capable of time slot conversion  
• Special ADPCM Input Data Code (”0000”) Detector for each channel  
• Master Clock Signal : Not necessary  
• Power supply voltage/Consumption current :  
+5 V ±10%, 2.5 mA/channel  
• Package :  
28-pin plastic SOP (SOP28-P-430-1.27-K) (Product name : MSM7580GS-K)  
1/17  

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