DAC testing using modulated signals

• Autorzy: Fexa P. , Verdal J. , Svatoš J.
• Języki publikacji: EN

Abstrakty

EN

This document analyses qualities of methods used for testing dynamical parameters of Digital-to-Analog Converters (DAC) using a multi-frequency signal. As the source for these signals, Amplitude Modulated (AM) and Frequency Modulated (FM) signals are used. These signals are often used in radio engineering. Results of the tests, like Effective Number of Bits (ENOB), Signal-to-Noise and Distortion (SINAD), are evaluated in the frequency domain and they are compared with standard results of Sine Wave FFT test methods. The aim of this research is firstly to test whether it is possible to test a DAC using modulated signals, secondly to reduce testing time, while estimating band performance of DAC.

Słowa kluczowe

EN

digital-to-analog converter; ENOB; Signal-to-noise and distortion; SINAD; FFT analysis; Crest Factor; CF

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2011
• Tom: Vol. 18, nr 2
• Strony: 283--293
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Fexa P.

autor

Verdal J.

autor

Svatoš J.

• CTU Prague, Faculty of Electrical Engineering Department of Measurement, Technicka 2, 16627, Prague 6, Czech Republic,

Bibliografia

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• [2] IEEE Standard 1241-2000. (2000). IEEE Standard and Terminology and Test Methods for Analog-to-Digital Converters. New York.
• [3] IEEE P1658 TM/D03.6. (1988). Draft Standard for Terminology and Test Methods for Digital-to-Analog Converters. New York.
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• [5] Vedral, J. (2008). Exponential Fit Test - Theoretical Analysis and Practically Implementation 13th Workshop on ADC Modelling and Testing [CD-ROM]. University of Florence Florence, 1033-1036.
• [6] Holcer, R., Michaeli, L. (2003). DNL ADC Testing by the exponential shaped voltage. IEEE Transaction on Instrumentation and Measurement, 52 (3), 946-949.
• [7] App. Note 641. (2002). ADC and DAC Glossary. Sunnyvale: Maxim Integrated Products, 22.
• [8] Oppenheim, A., Schafer, R. (1989). Discrete-Time Signal Processing. Prentice-Hall.
• [9] Vedral, J. (2010). ADC testing with poly-harmonic signals. Mixed-Signals, Sensors and Systems Test Workshop (IMS3TW). IEEE 16th International. IEEE, 1-4.
• [10] Dallet, D., Silva, J. (2005). Dynamic characterisation of analogue-to-digital converters. Springer Verlag.
• [11] Newkirk, D, Karlquist, R. (2004). Mixers, modulators and demodulators. The ARRL Handbook for Radio Communications (81st ed.). Newington: ARRL, 15.1-15.36.
• [12] Boashash, B. (2003). Time-Frequency Signal Analysis and Processing - A Comprehensive Reference. Elsevier Science. Oxford.