MSM7541

更新时间： 2024-11-20 22:51:07

品牌	Logo	应用领域
冲电气 - OKI		/
页数	文件大小	规格书
20页	154K
描述
Single Rail CODEC

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数据手册

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MSM7541 数据手册

E2U0014-28-81

This version: Aug. 1998

Previous version: Nov. 1996

¡ Semiconductor

MSM7541/7542

¡ Semiconductor

MSM7541/7542

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:

23 mW Typ.

1 mW Typ.

0.04 mW Typ.

= 3.3 V

• ITU-T Companding law

MSM7541:

MSM7542:

m-law

A-law

• 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

kW + 55 nF

• Package options:

20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7541RS)

(Product name : MSM7542RS)

24-pin plastic SOP (SOP24-P-430-1.27-K)

(Product name : MSM7541GS-K)

(Product name : MSM7542GS-K)

26-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM7541TS-K)

(Product name : MSM7542TS-K)

1/20

12 3 4 5 6 7...20

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与MSM7541相关器件

型号	品牌	获取价格	描述	数据表
MSM7541GS	OKI	获取价格	PCM Codec, MU-Law, 1-Func, PDSO24, 0.430 INCH, PLASTIC, SOP-24
MSM7541GS-K	OKI	获取价格	PCM Codec, MU-Law, 1-Func, CMOS, PDSO24, 0.430 INCH, 1.27 MM PITCH, PLASTIC, SOP-24
MSM7541GS-VK	OKI	获取价格	PCM Codec, MU-Law, 1-Func, PDSO24, 0.430 INCH, PLASTIC, SOP-24
MSM7542	OKI	获取价格	Single Rail CODEC
MSM7542GS	OKI	获取价格	PCM Codec, A-Law, 1-Func, PDSO24, 0.430 INCH, PLASTIC, SOP-24
MSM7542GS-VK	OKI	获取价格	PCM Codec, A-Law, 1-Func, PDSO24, 0.430 INCH, PLASTIC, SOP-24
MSM7542RS	OKI	获取价格	暂无描述
MSM7543	OKI	获取价格	Single Rail CODEC
MSM7543GS-K	OKI	获取价格	PCM Codec, MU-Law, 1-Func, CMOS, PDSO24, 0.430 INCH, 1.27 MM PITCH, PLASTIC, SOP-24
MSM7543TS-K	OKI	获取价格	PCM Codec, MU-Law, 1-Func, CMOS, PDSO20, 0.300 INCH, 1.27 MM PITCH, PLASTIC, TSOP2-26/20