MSM7717

E2U0041-28-81 ¡ Semiconductor MSM7717-01/02/03 ¡ Semiconductor Single Rail CODEC This version: Aug. 1998 MSM7717-01/02/03 Previous version: Nov. 1996 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: m/A-law pin selectable MSM7717-02: m-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) 1/19 ¡ Semiconductor MSM7717-01/02/03 BLOCK DIAGRAM AIN– AIN+ GSX – + ...