Title :
Delta-sigma modulation techniques to reduce noise and spurs in all-digital RF transmitters
Author :
Galanopoulos, Kostas ; Basetas, Charis ; Sotiriadis, Paul P.
Author_Institution :
Dept. of ECE, Nat. Tech. Univ., Athens, Greece
Abstract :
This paper proposes a compact RF all-digital transmitter that is based on a direct digital synthesizer topology combined with Sigma-Delta modulation and other digital techniques to produce a spurs-free, high-frequency, single or few bit output with improved noise floor performance.
Keywords :
delta-sigma modulation; direct digital synthesis; interference suppression; radio transmitters; radiofrequency interference; sigma-delta modulation; compact RF all-digital transmitter; delta-sigma modulation techniques; digital techniques; direct digital synthesizer topology; noise floor performance; sigma-delta modulation; Floors; Frequency modulation; Multi-stage noise shaping; Noise; Synthesizers; Topology; DDS; Dithering; Frequency synthesis; MASH; RF communications; S/D modulator;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859992
