Datasheet Summary
E2U0057-38-21
¡ Semiconductor MSM7617
¡ Semiconductor 2-Channel Echo Canceler
This version: Feb. 1999 MSM7617 Previous version: Aug. 1998
GENERAL DESCRIPTION
The MSM7617 cancels echoes (acoustic or line echoes) generated in voice channels. It is a lowpower CMOS LSI device with two channels. MSM7617 echo canceling is performed by digital signal processing. It negates echoes by estimating the echo channel and then generating a pseudo-echo signal.
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When used as an acoustic echo canceler, the MSM7617 can cancel acoustic echoes between speaker and microphone that occur during hands-free speaking with car phones, conferencing system phones, etc. When used as a line echo...