MSM7702-01/02/03
Single Rail CODEC
 

Documents

Applications

Description

The MSM7702 is a single-channel CODEC CMOS IC for voice signals ranging from 300 to 3400 Hz with filters for A/D and D/A conversion.

Designed especially for a single-power supply and low-power applications, the device is optimized for telephone terminals in digital wireless systems or ISDN systems.

The MSM7702 utilizes low-voltage operational amplifiers (Op-amps) to provide low-power consumption.

The device uses the same transmission clocks as those used in the MSM7508B and MSM7509B. The analog output signal can directly drive a piezoelectric-type handset receiver.

Block Diagram

Features

»	Single power supply: +2.7 V to +3.8%
»	Low power consumption »  Operating mode: 15 mW Typ. VDD =3 V »  Power save mode: 3.6 mW Typ. VDD =3 V »  Power down mode: 0.05 mW Typ. VDD =3 V
»	ITU-T Companding law »  MSM7702-01: µ/A-law pin selectable »  MSM7702-02: µ-law »  MSM7702-03: 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
»	Built-in reference voltage supply
»	Analog output can directly drive a load equivalent to 1.2 k
»	Pin-for-pin compatible with the MSM7578 and MSM7579
»	Package options: »  24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name : MSM7702-01GS-K) (Product name : MSM7702-02GS-K) (Product name : MSM7702-03GS-K) »  20-pin plastic SSOP (SSOP20-P-250-0.95-K) (Product name : MSM7702-01MS-K) (Product name : MSM7702-02MS-K) (Product name : MSM7702-03MS-K) Note: The product names are indicated in PIN CONFIGURATION.