MSM7704
DESCRIPTION
The MSM7704-01/7704-02/7704-03 are two-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion. Designed especially for a single-power supply and low-power applications, these devices contain two-channel AD/DA converters in a single chip and achieve a reduced footprint and a reduced number of external ponents. The MSM7704-01/7704-02/7704-03 are best suited for an analog interface to an echo canceller DSP used in digital telephone terminals, digital PABXs, and hands free terminals.
FEATURES
- Single power supply: +2.7 V to +3.8 V
- Power consumption Operating mode: 30 m W Typ. 50 m W Max. Power-saving mode: 3 m W Typ. 6 m W Max. Power-down mode: 0.03 m W Typ. 0.3 m W Max.
- ITU-T panding law MSM7704-01: m/A-law pin-selectable MSM7704-02: m-law MSM7704-03: A-law
- Built-in PLL eliminates a master clock
- The PCM interface can be switched between 2 channel serial/parallel
- Transmission clock: 64/128/256/512/102...
