DS2167 - (DS2167 / DS2168) ADPCM Processor
The DS2167 and DS2168 are dedicated digital signal processor (DSP) CMOS chips optimized for Adaptive Differential Pulse Code Modulation (ADPCM) based compression algorithms.
The devices halve the transmission bandwidth of “toll quality” voice from 64K to 32K bits/second and are utilized in PCM-based
DS2167 Features
* PIN ASSIGNMENT RST TM0 TM1 A0 A1 A2 A3 A4 A5 SPS MCLK VSS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VDD YIN CLKY FSY YOUT CS SDI SCLK XOUT FSX CLKX XIN
* Speech compression chip compatible with standard ADPCM algorithms:
* DS2167 supports “new” T1Y1 recommendat
