Title :
Digital Signal Processors for PCM CODEC Applications
Author :
Conq, B. ; Leloup, J.P. ; Senn, P.
Author_Institution :
Centre de Microelectron. du CNET GRENOBLE, Meylan, France
Abstract :
Noise Shaping Coders when associated with digital filters may become an interesting alternative to switched capacitor circuits for integrated PCM CODECS with filters. As a realistic approach, we propose two processors which have been designed in a 6 pm NMOS technology using a symbolic layout. In order to reduce the total area, distributed arithmetic techniques and a modified two´s complement code have been used to implement the I.I.R. filters.
Keywords :
IIR filters; MOSFET; codecs; digital signal processing chips; pulse code modulation; switched capacitor filters; IIR filters; NMOS technology; digital filters; digital signal processors; distributed arithmetic techniques; integrated PCM codec; noise shaping coders; switched capacitor circuits; symbolic layout; Codecs; Decoding; Digital filters; Digital signal processors; Energy consumption; Finite impulse response filter; IIR filters; Multiplexing; Phase change materials; Read only memory;
Conference_Titel :
Solid-State Circuits Conference, 1982. ESSCIRC '82. Eighth European
Conference_Location :
Brussels
