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參數(shù)資料
| 型號(hào)： | MSM7540 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 元件分類： | Codec |
| 英文描述： | Single Rail ADPCM CODEC |
| 中文描述： | 單軌差分PcM編解碼器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 156K |
| 代理商： | MSM7540 |
1/16
Semiconductor
MSM7540/7560
FEDL7540-03
Single Rail ADPCM CODEC
GENERAL DESCRIPTION
The MSM7540/7560 are single channel ADPCM CODEC ICs which perform mutual transcoding
between an analog voice band signal 300 to 3400 Hz and 32 kbps ADPCM serial data.
Using advanced circuit technology, these devices operate using a single 5 V power supply and
have low power consumption.
The MSM7540/7560 are optimized for advanced digital cordless telephone system applications.
FEATURES
Single 5 V Power Supply Operation
ADPCM Algorithm :
Complies completely with 1988's version ITU-T
G.721 (32 kbps)
Transmit/Receive Full-Duplex Operation
Transmit/Receive Synchronous Mode Only
Serial ADPCM Transmission Data Rate :
Serial PCM Transmission Data Rate :
PCM Interface Coding Format
MSM7540 :
MSM7560 :
Low Power Consumption
Operating Mode :
Power-Down Mode :
Two Analog Input Amplifier Stages :
Analog Output Stage :
Built-in Crystal Oscillator (10.368 MHz)
Built-in Reference Voltage Supply
Option Reset Specified by ITU-T G. 721/ADPCM
Package:
28-pin plastic SOP
(SOP28-P-430-1.27-K)
32 kbps to 2048 kbps
64 kbps to 2048 kbps
A-law or Linear (14-bit, 2's compliment) Selectable
m
-law or Linear (14-bit, 2's compliment) Selectable
60 mW Typ.
1.0 mW Typ.
Externally Adjustable Gain
Push-pull Drive (direct drive of 350
W
+ 120 nF)
(Product name: MSM7540GS-K)
(Product name: MSM7560GS-K)
FEDL7540-03
This version: Nov. 1999
Previous version: Aug. 1998
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM7541 | Single Rail CODEC |
| MSM7542 | Single Rail CODEC |
| MSM7543 | Single Rail CODEC |
| MSM7544 | Single Rail CODEC |
| MSM7545 | LSI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7540G3-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM7540L | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail ADPCM CODEC |
| MSM7540LG3-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM7540LGS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM7540LGS-K(MA) | 制造商:ROHM Semiconductor 功能描述: |
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