Single Rail CODEC
Issue Date: Jun. 21, 2012
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 kΩ load, can directly drive a handset receiver differentially.
Single power supply : 2.7 V to 3.8 V
Low power consumption
Operating mode :
20 mW Typ. VDD=3V
Power-down mode : 0.03mW Typ. VDD=3V
Conforms to ITU-T Companding law
µ/A-law pin selectable
Built-in PLL eliminates a master clock
Serial data rate : 64/128/256/512/1024 kHz
Adjustable transmit gain
Adjustable receive gain
Built-in reference voltage supply
20-pin plastic SSOP (SSOP20-P-250-0.95-K)