Abstract:
This paper describes algorithms for generating low intermodulation-distortion (IMD) two-tone sinewaves, for communication application ADC testing, using an arbitrary wave...Show MoreMetadata
Abstract:
This paper describes algorithms for generating low intermodulation-distortion (IMD) two-tone sinewaves, for communication application ADC testing, using an arbitrary waveform generator (AWG) or a multi-bit ΣΔ DAC inside an SoC. The nonlinearity of the DAC generates distortion components, and we propose here eight methods to precompensate for the IMD using DSP algorithms and produce low-IMD two-tone signals. Theoretical analysis, simulation, and experimental results all demonstrate the effectiveness of our approach.
Published in: 2012 IEEE 21st Asian Test Symposium
Date of Conference: 19-22 November 2012
Date Added to IEEE Xplore: 31 December 2012
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