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