CDB6403

www.DataSheet4U.com CS6403 Echo-Cancelling Codec Features 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, lowcost 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. The on-chip ADC and DAC employ over-sampling technology, which eliminates the need for complex external anti-aliasing and reconstruction filters, further reducing system cost. The CS6403 has a serial interface that is compatible with most DSPs and PCM codecs. Clock and sync lines control the transfer of serial data via the separate serial datain and data-out pins. Both 16-bit audio data and control/status information may be multiplexed on this serial channel using a steering bit. ORDERING INFORMATION CS6403-IQ -40° to +85° C 44-pin TQFP CS6403-IL -40° to +85° C 44-pin PLCC CDB6403 Evaluation Board l Applicable in: Digital-Cellular Hands-Free Phones Analog-Cellular Hands-Free Phones Office Speaker Phones Desktop & Video Teleconferencing l Echo Cancellation l Serial Data/Control Interface l On-Chip Delta-Sigma Codec - - Up to 60 dB ERLE - 512 Tap (64 ms at 8 kHz sampling rate) - Split Mode For Two Echo Cancellers l Automatic Gain Control (AGC) l No Training Signals Generated I <...