Title :
System prototype design for a 16-kbps adaptive vector quantization waveform coder
Author :
Foster, John ; Ardalan, Shoiar
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 effort 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, 64 kbit/s pulse-code modulation (PCM) codec, a 16 kb/s USART, and clock circuitry. The system level computer-aided design (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. A demonstration of the CAD tools is shown
Keywords :
application specific integrated circuits; circuit CAD; circuit analysis computing; codecs; data compression; encoding; pulse-code modulation; 1 MByte; 16 kbit/s; 64 kbit/s; ASIC; Apollo/Mentor Graphics platform; PCM codec; RAM; USART; adaptive vector quantization; adaptive vector quantizer; application specific integrated circuit; board-level simulation; chip level simulation; clock circuitry; computer-aided design; fabrication turnaround; library functionality; pulse-code modulation; routing; system hardware description; system level CAD tools; system prototype design; system software description; waveform coder; waveform coding; Application specific integrated circuits; Delta modulation; Design automation; Modulation coding; Phase change materials; Prototypes; Pulse circuits; Pulse modulation; Read-write memory; Vector quantization;
Conference_Titel :
Southeastcon '90. Proceedings., IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/SECON.1990.117814
