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

fYear

2014

fDate

3-6 Aug. 2014

Firstpage

495

Lastpage

498

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2014 IEEE 57th International Midwest Symposium on

Conference_Location

College Station, TX

ISSN

1548-3746

Print_ISBN

978-1-4799-4134-6

Type

conf

DOI

10.1109/MWSCAS.2014.6908460

Filename

6908460