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MSM7557 PDF预览

MSM7557

更新时间: 2024-11-08 22:51:07
品牌 Logo 应用领域
冲电气 - OKI 调制解调器电话
页数 文件大小 规格书
25页 152K
描述
Single Chip MSK Modem with Compandor for Cordless Telephone

MSM7557 数据手册

 浏览型号MSM7557的Datasheet PDF文件第2页浏览型号MSM7557的Datasheet PDF文件第3页浏览型号MSM7557的Datasheet PDF文件第4页浏览型号MSM7557的Datasheet PDF文件第5页浏览型号MSM7557的Datasheet PDF文件第6页浏览型号MSM7557的Datasheet PDF文件第7页 
E2A0046-16-X1  
This version: Jan. 1998  
Previous version: Nov. 1996  
¡ Semiconductor  
MSM7557  
Single Chip MSK Modem with Compandor for Cordless Telephone  
GENERAL DESCRIPTION  
The MSM7557 is a single chip MSK modem with base band voice processor for cordless telephone.  
The MSM7557 voice transmit block consists of high pass filter, compressor, pre-emphasis, limiter  
and splatter filter.  
Voice receive block consists of Band pass filter, De-emphasis and Expander.  
FEATURES  
• Available to transmit modem signal and also transmit base band voice signal through wireless  
transmission path (0.3 kHz to 3.4 kHz)  
• Built-in compandor circuit  
• Upper limit of voice band (3306 Hz/3400 Hz/3500 Hz) is selectable  
• Modem bit rate (2400/1200 bps) is selectable  
• Transmit function and receive function operate separately  
• Emphasis mode selectable  
• Built-in bit synchronous detector and frame synchronous detector  
• Built-in limiter level generator and external limit voltage input  
• Dynamic range selectable  
• Built-in crystal oscillator circuit  
• Wide range power supply voltage (2.7V ~ 5.5V)  
• Package :  
56-pin plastic QFP  
(QFP56-P-910-0.65-2K)(Product name : MSM7557GS-2K)  
1/25  

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