Analysis of Mismatch Noise in Randomly Interleaved ADC Systems
2003 (English)In: Proceedings of the 2003 IEEE International Conference on Acoustics, Speech and Signal Processing, 2003, 277-280 vol.6 p.Conference paper (Refereed)
Time interleaved A/D converters (ADC) can be used to increase the sample rate of an ADC system. However, a problem with time interleaved ADC is that distortion is introduced in the output signal due to various mismatch errors between the ADC. One way to decrease the impact of the mismatch errors is to introduce additional ADC in the interleaved structure and randomly select an ADC at each sample instance. The periodicity of the errors is then removed and the spurious distortion is changed to a more noiselike distortion, spread over the whole spectrum. In this paper, a probabilistic model of the randomly interleaved ADC system is presented. The noise spectrum caused by gain errors is also analyzed.
Place, publisher, year, edition, pages
2003. 277-280 vol.6 p.
A/D converter, Signal sampling, Analogue-digital conversion, Spectral analysis
IdentifiersURN: urn:nbn:se:liu:diva-90303DOI: 10.1109/ICASSP.2003.1201672ISBN: 0-7803-7663-3OAI: oai:DiVA.org:liu-90303DiVA: diva2:613628
2003 IEEE International Conference on Acoustics, Speech and Signal Processing, Hong Kong, China, April, 2003