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TrueSpeech® Co-Processor
PRELIMINARY/CONFIDENTIAL
Version: 1.18
CT8022A11AQC FW Revision 0118
DSP GROUP, INC., 3120 SCOTT BOULEVARD
3
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
All specifications are subject to change without prior notice.
Programmable Echo Suppressor &
Acoustic Echo Cancellor
CODEC
Interface
Host Interface
Host Interface
Frame Buffering
Speech
Encoder
Input Volume
Control
Frame Buffering
Speech
Decoder
Output Volume
Control
DTMF & Tone
Detector
DTMF & Tone
Generator
CODEC
(optional telephone line connection)
Speaker/Microphone connection
Data/Program SRAM
8Kx8 … 32Kx16
GPIO
CODEC
Line Echo
Canceller
CODEC
Interface
CT8022 Functional Block Diagram