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參數(shù)資料
| 型號： | MSM7557 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Single Chip MSK Modem with Compandor for Cordless Telephone |
| 中文描述： | 單芯片MSK調(diào)制解調(diào)器無繩電話與Compandor |
| 文件頁數(shù)： | 1/25頁 |
| 文件大?。?/td> | 153K |
| 代理商： | MSM7557 |
1/25
Semiconductor
MSM7557
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)
Single Chip MSK Modem with Compandor for Cordless Telephone
E2A0046-16-X1
This version: Jan. 1998
Previous version: Nov. 1996
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM7564-01 | CONNECTOR ACCESSORY |
| MSM7570-01 | Multi-Function ADPCM CODEC(多功能ADPCM編碼譯碼器) |
| MSM7575 | Multi-Function ADPCM CODEC(多功能ADPCM(自適應(yīng)差分脈沖編碼調(diào)制）編碼譯碼器) |
| MSM7576 | LSI |
| MSM7577 | Voice Signal Level Control LSI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7560 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail ADPCM CODEC |
| MSM7560L | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail ADPCM CODEC |
| MSM7564-01 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:A Single Chip 14.4 kbps Data & Fax Modem |
| MSM7566 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
| MSM7566GS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
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