GENERAL DESCRIPTION

The MSM7717 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 ISDN terminals and telephone terminals in digital wireless systems.

The device uses the same transmission clocks as those used in the MSM7508B and MSM7509B.

The analog output, which can drive a 1.2 kW load, can directly drive a handset receiver differentially.

FEATURES

? Single power supply: 2.7 V to 3.8 V

? Low power consumption

Operating mode: 20 mW Typ. VDD = 3 V

Power-down mode: 0.03 mW Typ. VDD = 3 V

? Conforms to ITU-T Companding law

MSM7717-01: μ/A-law pin selectable

MSM7717-02: μ-law

MSM7717-03: A-law

? Built-in PLL eliminates a master clock

? Serial data rate: 64/128/256/512/1024 kHz

96/192/384/768/1536/1544/2048/200 kHz

? Adjustable transmit gain

? Adjustable receive gain

? Built-in reference voltage supply

? Package options:

24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name: MSM7717-01GS-K)

(Product name: MSM7717-02GS-K)

(Product name: MSM7717-03GS-K)

20-pin plastic SSOP (SSOP20-P-250-0.95-K) (Product name: MSM7717-01MS-K)

(Product name: MSM7717-02MS-K)

(Product name: MSM7717-03MS-K)