Title :
System prototype design for a 16-K bps adaptive vector quantization waveform coder
Author :
Foster, John ; Ardalan, Shojar
Author_Institution :
Dept. of Electr. Eng., North Carolina A&T State Univ., Greensboro, NC, USA
Abstract :
The system design of an adaptive vector quantizer (AVQ) for waveform coding is presented. The goal of this work is the development of a 16-kb/s AVQ coder prototype system which can be used as an alternative to 32-kb/s adaptive delta pulse code modulation (ADPCM). The major components of the board are an application-specific integrated-circuit (ASIC) AVQ chip, a 1 M×8 RAM, a 64-kb/s PCM codec, a 16-kb/s universal synchronous/asynchronous receiver/transmitter (USART), and clock circuitry. The system-level CAD tools are presented for an Apollo/Mentor graphics platform. The integration of ASIC chip design with system hardware/software description is discussed. Both chip- and board-level simulation, routing, library functionality, and fabrication turnaround are presented
Keywords :
CAD; analogue-digital conversion; encoding; 16 kbit/s; 32 kbit/s; 64 kbit/s; ASIC chip; Apollo/Mentor graphics platform; CAD tools; adaptive vector quantization waveform coder; board-level simulation; chip-level simulation; fabrication turnaround; library functionality; routing; Application specific integrated circuits; Clocks; Codecs; Delta modulation; Modulation coding; Phase change materials; Prototypes; Pulse modulation; Transmitters; Vector quantization;
Conference_Titel :
System Theory, 1990., Twenty-Second Southeastern Symposium on
Conference_Location :
Cookeville, TN
Print_ISBN :
0-8186-2038-2
DOI :
10.1109/SSST.1990.138175
