參數(shù)資料
型號(hào)： MSM7541
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(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 154K
代理商： MSM7541
Semiconductor
MSM7541/7542
1/20
Single Rail CODEC
GENERAL DESCRIPTION
The MSM7541 and MSM7542 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.
The MSM7541 and MSM7542 use newly designed operational amplifiers to maintain 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, directly drives a piezoelectric type
handset receiver.
FEATURES
Single power supply: +3.0 V to +3.8 V
Low power consumption
Operating mode:
Power save mode:
Power down mode:
ITU-T Companding law
MSM7541:
MSM7542:
Built-in PLL eliminates a master clock
Serial data rate: 64/128/256/512/1024/2048 kHz
96/192/384/768/1536/1544/200 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 piezoelectric type receiver equivalent to 1.2
k
W
+ 55 nF
Package options:
20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7541RS)
23 mW Typ.
1 mW Typ.
0.04 mW Typ.
V
DD
= 3.3 V
V
DD
= 3.3 V
V
DD
= 3.3 V
m
-law
A-law
(Product name : MSM7542RS)
(Product name : MSM7541GS-K)
(Product name : MSM7542GS-K)
24-pin plastic SOP (SOP24-P-430-1.27-K)
26-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM7541TS-K)
(Product name : MSM7542TS-K)
E2U0014-28-81
This version: Aug. 1998
Previous version: Nov. 1996
相關(guān)PDF資料
PDF描述
MSM7542 Single Rail CODEC
MSM7543 Single Rail CODEC
MSM7544 Single Rail CODEC
MSM7545 LSI
MSM7557 Single Chip MSK Modem with Compandor for Cordless Telephone
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSM7542 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC
MSM7543 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC
MSM7544 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC
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
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