Towards a Better Understanding of 1-Bit Sigma-Delta Modulators

Lipshitz S, Vanderkooy J. Towards a Better Understanding of 1-Bit Sigma-Delta Modulators. In: AES Convention 110. Audio Engineering Society; 2001. Paper 5398. Available from: https://aes.org/publications/elibrary-page/?id=9908

@inproceedings{Lipshitz2001_9908,
  author = {Lipshitz, Stanley and Vanderkooy, John},
  title = {{Towards a Better Understanding of 1-Bit Sigma-Delta Modulators}},
  booktitle = {AES Convention 110},
  note = {Paper 5398},
  year = {2001},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=9908}
}

TY  - CPAPER
TI  - Towards a Better Understanding of 1-Bit Sigma-Delta Modulators
AU  - Lipshitz, Stanley
AU  - Vanderkooy, John
T2  - AES Convention 110
M1  - Paper 5398
PY  - 2001
DA  - 2001/05/06
UR  - https://aes.org/publications/elibrary-page/?id=9908
PB  - Audio Engineering Society
LA  - en
AB  - Although 1-bit Sigma-Delta modulators cannot be adequately dithered to make their performance perfect, the application of substantial noise shaping gives them modest performance while maintaining reasonable stability. Partial dithering has been shown to improve these devices, but spuriae remain. By simulation we study: (a) the nature of the idle tone, (b) the effect of the order of the shaping filter, (c) the influence of shaper stability, and (d) coherence and incoherence of the shaper's output. Calculation of these features demands high numerical precision and is greatly aided by coherent averaging.
ER  -