Title :
Video-rate D/A converter using reduced rate sigma-delta modulation
Author :
Birru, Dagnachew ; Roza, Engel
Author_Institution :
Digital VLSI Group, Philips Res. Lab., Eindhoven, Netherlands
Abstract :
Full 5-MHz-bandwidth video-signal is converted from digital-to-analog by a novel sigma-delta modulation technique at an equivalent PCM-precision of 8 bits. This new type of signal processing allows the sigma-delta modulator to operate at 54-MHz, which is about a quarter of the rate that would be required in equivalent conventional configurations. Owing to the reduced clock frequency, the power dissipation of the D/A converter is as low as 15 mW
Keywords :
CMOS integrated circuits; digital-analogue conversion; sigma-delta modulation; video signal processing; 15 mW; 5 MHz; 54 MHz; D/A converter; clock frequency reduction; power dissipation; reduced rate sigma-delta modulation; sigma-delta modulator; signal processing; video-rate DAC; CMOS technology; Circuits; Clocks; Delta-sigma modulation; Digital modulation; Frequency conversion; Signal processing; Signal resolution; Table lookup; Video signal processing;
Conference_Titel :
Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-4292-5
DOI :
10.1109/CICC.1998.694972
