Title :
Mixed-signal quadrature demodulator with a multi-carrier regeneration system
Author :
Van Lammeren, Joop P M ; Wissing, Roy W B
Author_Institution :
Philps Semicond., Nijmegen, Netherlands
Abstract :
This paper presents a combined analogue/ digital demodulation system that features digital carrier regeneration controlled by a sigma-delta converter with a combined decimation/loop filter which acts on the analogue signal path via two four-quadrant multiplying DACs to retrieve the I and Q signals
Keywords :
demodulators; digital-analogue conversion; mixed analogue-digital integrated circuits; sigma-delta modulation; PAL/NTSC colour decoder; combined analogue/ digital demodulation; cost reduction; decimation/loop filter; digital carrier regeneration; four-quadrant multiplying DAC; mixed-signal quadrature demodulator; multi-carrier regeneration; sigma-delta converter; Clocks; Control systems; Delta-sigma modulation; Demodulation; Filters; Frequency; Phase detection; Phase locked loops; Tunable circuits and devices; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5443-5
DOI :
10.1109/CICC.1999.777275
