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參數(shù)資料
| 型號(hào)： | MSM7544 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 元件分類： | Codec |
| 英文描述： | Single Rail CODEC |
| 中文描述： | 單鐵編解碼器 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 159K |
| 代理商： | MSM7544 |
Semiconductor
MSM7543/7544
1/19
Single Rail CODEC
GENERAL DESCRIPTION
The MSM7543 and MSM7544 are single-channel CODEC CMOS ICs for voice signals ranging
from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion.
Designed especially for a single-power supply and low-power applications, these devices are
optimized for telephone terminals in digital wireless systems, ISDN terminals, and digital PBXs.
The MSM7543 and MSM7544 use newly-designed operational amplifiers to keep small current
deviations caused by power voltage fluctuations.
The devices use the same transmission clocks as those used in the MSM7508B and MSM7509B.
The analog output signal, which is of a differential type and can drive a 600
W
load, can directly
drive a handset receiver.
FEATURES
Single power supply: +5 V
±
5%
Low power consumption
Operating mode:
Power save mode:
Power down mode:
ITU-T Companding law
MSM7543:
MSM7544:
The transmission characteristics of the devices comply with ITU-T G.714
Built-in PLL eliminates a master clock
Serial data rate: 64/128/256/512/1024/2048 kHz
96/192/384/768/1536/1544 kHz
Adjustable transmit gain
Adjustable receive gain
Built-in reference voltage supply
Built-in analog loop back test mode
Differential type analog output. Directly drives a 600
W
line transformer
Package options:
20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7543RS)
20 mW Typ.
4.5 mW Typ.
1.5 mW Typ.
31.5 mW Max.
8 mW Max.
3 mW Max.
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 5 V
m
-law
A-law
(Product name : MSM7544RS)
(Product name : MSM7543GS-K)
(Product name : MSM7544GS-K)
24-pin plastic SOP (SOP24-P-430-1.27-K)
26-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM7543TS-K)
(Product name : MSM7544TS-K)
E2U0015-28-81
This version: Aug. 1998
Previous version: Nov. 1996
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM7545 | LSI |
| MSM7557 | Single Chip MSK Modem with Compandor for Cordless Telephone |
| 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) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7545 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:LSI |
| MSM7547 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Voice Signal Level Control LSI |
| MSM7547MS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Voice Signal Level Control LSI |
| MSM7557 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Chip MSK Modem with Compandor for Cordless Telephone |
| MSM7560 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail ADPCM CODEC |
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