Title :
Efficient realisation of a combined D/A and A/D interface for DSP processors
Author :
Hodgkiss, William
Author_Institution :
GEC Hirst Res. Centre, Wembley
Abstract :
Propose an interface for a single DSP chip performing a simultaneous transmit and receive function. Examples of this situation are where data modems operate in full duplex, or with speech encryption where the DSP performs a scrambling function. The parameters to which the proposed interface is designed are: accuracy to 12 bits and bandwidth to 3 kHz. These performance criteria are satisfactory to enable data modems to operate over the telephone network and to give toll-quality speech
Keywords :
analogue-digital conversion; digital signal processing chips; digital-analogue conversion; modems; A/D interface; D/A interface; DSP processors; data modems; full duplex; performance criteria; receive function; scrambling function; speech encryption; telephone network; toll-quality speech; transmit function;
Conference_Titel :
Advanced A/D and D/A Conversion Techniques and Applications, IEE Colloquium on
Conference_Location :
London
