DAC testing using impulse signals

• Autorzy: Vedral J. , Fexa P.
• Języki publikacji: EN

Abstrakty

EN

The Multi-Tone (MT) signal with uniform amplitudes can be used for DAC testing. This paper shows an easier way to generate a MT signal using several impulse signals. The article also analyzes qualities of methods for testing the dynamic parameters of Digital to Analog Converters using an impulse signal. The MT, Damped Sine Wave (DSW) and Sinx/x (SINC) signals will be used as the source for these tests. The Effective Number of Bits (ENOB) and Signal to noise and distortion (SINAD) are evaluated in the frequency domain and they are modified using the Crest Factor (CF) correction and compared with the standard results of the Sine Wave FFT test. The first advantage of the test using an impulse signal is that you need fewer input parameters to create the band signal for testing the DAC. The second one is to reduce the testing time using a band signal in comparison with multiple tests using a single sine wave.

Słowa kluczowe

EN

DAC; ENOB; SINAD; FFT test; Crest Factor; Damped Sine Wave; SINC signal; Multi-Tone signal

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2012
• Tom: Vol. 19, nr 1
• Strony: 105--114
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Vedral J.

autor

Fexa P.

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

Bibliografia

• [1] IEEE P1658 TM/D03.6. (2011). Draft Standard for Terminology and Test Methods for Digital-to-Analog Converters. New York.
• [2] Belega, D. (2004). Testing of ADCs by frequency domain analysis in multi-tone. Proceedings of Romanian Academy, Series A, 5(2).
• [3] Ramos, P., Serra, A. (2007). Least Squares Multiharmonic Fitting: Convergence Improvements. IEEE Transaction on Instrumentation and Measurement, 56 (4).
• [4] Fexa, P.,Vedral, J. (2011). DAC testing using modulated signals. Metrology and Measurement Systems, 18(2), 283-294.
• [5] Oppenheim, A., Schafer, R. (1989). Discrete-Time Signal Processing. Prentice-Hall.
• [6] Luque, C., Bjorsell, N. (2009). Improved dynamic range for multitone signal using model-based pre-distortion. Metrology and Measurement Systems, 16(1), 129-141.
• [7] Critical DAC Parameters for Multi-Carrier GSM/EDGE Transmitters. Application Note 1886: http://www.maxim-ic.com/an1886.
• [8] Vedral, J. (2010). ADC Testing with Poly-harmonic Signals In: IMS3TW - the 2010 IEEE 16th International Mixed-Signals, Sensors and Systems Test Workshop [CD-ROM]. Montpellier: Université Montpellier II.
• [9] Fexa, P.,Vedral, J. (2011). DAC testing using impulse signals. IMS3TW 2011 IEEE 17th International Mixed-Signals, Sensors and Systems Test Workshop [CD-ROM]. Santa Barbara, California, USA.
• [10] Weisstein, E.V. Damped Simple Harmonic Motion Underdamping.
• [11] From Math World a Wolfram Web Resource. http://mathworld.wolfram.com/DampedSimpleHarmonic MotionUnderdamping.html.
• [12] Fexa, P.,Vedral, J. (2011). Using of Pulse Signal Sinx/x for DAC Testing. IMEKO IWADC 2011 International Workshopp on Modelling, Testing and Data Converter Analysis and Design [CD-ROM]. Orvietto, Italy.