Virtually all traditional signal quality analysis procedures operate on data in the frequency domain, and therefore require steady-state signals. However, real-life signals are, typically, not steady-state. In order to be able to measure the conversion quality of a sigma-delta modulator under non-steady-state excitation, in this chapter a time domain SINAD measurement method is introduced. The operation of this time domain method is first verified with steady-state signal measurements, and finally applied to non-steady-state signals. The simulations on various non-steady-state signals indicate that no significant conversion errors are generated, and that the traditional signal quality analysis procedures are adequate.
CITATION STYLE
Janssen, E., & van Roermund, A. (2011). Transient SDM Performance. In Analog Circuits and Signal Processing (pp. 29–41). Springer. https://doi.org/10.1007/978-94-007-1387-1_3
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