Title :
System-level design aspects of a DAC Calibration technique for bandpass delta-sigma modulators
Author :
Gagnon, Ghyslain ; MacEachern, Leonard
Author_Institution :
Dept. of Electron., Carleton Univ., Ottawa, ON
Abstract :
This paper gives relevant system-level design information for a previously reported technique that digitally compensates for DAC nonlinearities in bandpass delta-sigma modulators. A method is described to optimally determine the noise and signal transfer functions, the lowpass decimation filter cutoff frequency as well as the number of samples required for power estimation. Simulation results confirm the validity of the analysis.
Keywords :
delta-sigma modulation; low-pass filters; DAC calibration; bandpass delta-sigma modulators; lowpass decimation filter; power estimation; system-level design; Calibration; Delta modulation; Digital modulation; Filtering theory; Filters; Minimization methods; Noise shaping; Poles and zeros; System-level design; Transfer functions;
Conference_Titel :
Circuits and Systems, 2007. NEWCAS 2007. IEEE Northeast Workshop on
Conference_Location :
Montreal, Que
Print_ISBN :
978-1-4244-1163-4
Electronic_ISBN :
978-1-4244-1164-1
DOI :
10.1109/NEWCAS.2007.4488027
