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MSM7603B - Echo Canceler

Download the MSM7603B datasheet PDF. This datasheet also covers the MSM7603 variant, as both devices belong to the same echo canceler family and are provided as variant models within a single manufacturer datasheet.

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.

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.
  • Package: 28-pin plastic SSOP (SSOP28-P-485-0.65-K) (Product name : MSM7603-003GS-K) (Product name : MSM7.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MSM7603_OKIelectroniccomponets.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by OKI Electric

Part Number Description
MSM7603 Echo Canceler
MSM7602 Echo Canceler
MSM7617 2-Channel Echo Canceler
MSM7620 Echo Canceler
MSM7630 Universal Speech Processor

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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. www.DataSheet4U.com Echo is canceled, in digital signal processing, by estimating the echo path and generating a pseudo echo signal.