Title :
A comparison of continuous time sigma delta modulator simulation methods
Author :
Kyung Kang ; Stubberud, Peter
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Nevada Las Vegas, Las Vegas, NV, USA
Abstract :
Several common approaches for simulating continuous time sigma delta modulators (CT ΣΔMs) include SPICE modeling, solving differential equations, implementing difference equations based on impulse invariance and using Simulink. In this paper, the delta transform is used to determine difference equations which are used to simulate CT ΣΔMs. This method´s speed and accuracy are compared to the other afore mentioned methods with respect to the elapsed time of simulation and the signal to quantization noise ratio (SQNR), respectively.
Keywords :
SPICE; circuit simulation; differential equations; sigma-delta modulation; CT ΣΔMs; SPICE modeling; SQNR; Simulink; continuous time sigma delta modulator simulation methods; delta transform; differential equations; impulse invariance; signal to quantization noise ratio; Delays; Difference equations; Mathematical model; Modulation; SPICE; Transforms; block diagram; continuous time; continuous time sigma delta modulator; delta operator; delta sigma modulator; delta transform; simulating sigma delta modulator; simulation comparison;
Conference_Titel :
Circuits and Systems (MWSCAS), 2014 IEEE 57th International Midwest Symposium on
Conference_Location :
College Station, TX
Print_ISBN :
978-1-4799-4134-6
DOI :
10.1109/MWSCAS.2014.6908460
