Description

The CS6403 is an application-specific digital signal processor optimized for network and acoustic echo cancellation applications. A high-quality codec is integrated with the processor to provide a complete, low cost echo-cancellation solution. The CS6403 is a fully independent processor that requires no signal processing support to implement its cancellation functions. Volume control, AGC, and sleep functions are also provided.

Features

Applicable in:

- Digital-Cellular Hands-Free Phones

- Analog-Cellular Hands-Free Phones

- Office Speaker Phones

- Desktop & Video Teleconferencing

Echo Cancellation

- Up to 60 dB ERLE

- 512 Tap (64 ms at 8 kHz sampling rate)

- Split Mode For Two Echo Cancellers

Serial Data/Control Interface

On-Chip Delta-Sigma Codec

- < 1% THD, 8 Ω Load On Output

- > 70 dB S/(N+D) on Input

- 300-3600 Hz Bandwidth (8 kHz sampling rate)

- Volume Control

- Microphone Preamp

Automatic Gain Control (AGC)

No Training Signals Generated