GENERAL 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.

FEATURES

• Single power supply: +2.7 V to +3.8 V
• 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: m/A-law pin selectable
MSM7702-02: m-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 kW
• 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)