MSM7603B Overview
The MSM7603/7603B is an improved version of the MSM7602 with basically the same configuration, and offers twice the cancelable echo delay time of the MSM7602. The MSM7603B I/O interface allows switching between m-law PCM and A-law PCM. The MSM7603/7603B is a low-power CMOS IC device for canceling echo (in an acoustic system or telephone line) generated in a speech path.
MSM7603B Key Features
- Can handle both acoustic and telephone line echoes
- Switchable between m-law PCM and A-law PCM interfaces. (MSM7603B)
- Cancelable echo delay time: MSM7603B-003
- 55 ms (max.)
- Echo attenuation : 30 dB (typ.)
- Clock frequency : 19.2 MHz 17.5 MHz to 20 MHz (when internal sync signal not used)
- Power supply voltage : 2.7 V to 5.5 V
- SOUT P/S Linear/ Non-linear Center Clip ATT
- For MSM7603B only