Title :
Mixed signal frequency mixers with intermodulation product cancellation
Author :
Ling, William A. ; Sotiriadis, Paul P. ; Adams, Robert
Author_Institution :
Sotekco Electron. LLC, Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
We propose a nearly all-digital, broadband frequency mixer which synthesizes a sinewave at the frequency difference of two periodic input square waves. The mixer has high output spurious free dynamic range by cancelling the dominant intermodulation products in the sinewave generation process. Due to its use of almost exclusively digital circuitry, it can easily be integrated with CMOS digital circuits. A programmable logic implementation and spectral measurements demonstrate its feasibility and performance.
Keywords :
CMOS digital integrated circuits; mixers (circuits); programmable logic devices; waveform generators; CMOS digital circuits; all-digital mixer; broadband frequency mixer; intermodulation product cancellation; mixed signal frequency mixers; programmable logic implementation; sinewave generation process; spectral measurements; CMOS digital integrated circuits; CMOS logic circuits; Digital circuits; Dynamic range; Frequency synthesizers; Integrated circuit measurements; Integrated circuit synthesis; Programmable logic arrays; Programmable logic devices; Signal synthesis;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5118210
