Title :
A 32-bit CMOS numerically controlled oscillator ASIC exceeds 234 MHz
Author :
Thompson, Matthew
Author_Institution :
Interstate Electronics Corp., Anaheim, CA, USA
Abstract :
A new design technique has been developed and implemented that allows much higher frequencies to be generated using direct digital synthesis (DDS). Using this improved progression-of-states technique, a 32-bit numerically controlled oscillator (NCO) implemented in a 1.0-micron complementary metal oxide semiconductor (CMOS) application-specific integrated circuit (ASIC) gate-array can now accumulate at 234 MHz, which is well above the commercially available rates of only 60 MHz
Keywords :
CMOS integrated circuits; application specific integrated circuits; frequency synthesizers; logic arrays; 1.0 micron; 234 MHz; 32 bits; design technique; direct digital synthesis; gate-array; numerically controlled oscillator; progression-of-states technique; Application specific integrated circuits; CMOS technology; Circuit synthesis; Clocks; Delay; Frequency conversion; Frequency synthesizers; Gallium arsenide; Oscillators; Pipeline processing;
Conference_Titel :
ASIC Conference and Exhibit, 1991. Proceedings., Fourth Annual IEEE International
Conference_Location :
Rochester, NY
Print_ISBN :
0-7803-0101-3
DOI :
10.1109/ASIC.1991.242965
