E2U0064-18-82
¡ Semiconductor MSM7603/7603B
¡ Semiconductor Echo Canceler
This version: Aug.
1998 MSM7603/7603B
GENERAL DESCRIPTION
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.
com Echo is canceled, in digital signal processing, by estimating the echo path and generating a pseudo echo signal.
When used as an acoustic echo canceler, the device can canc...