Publication: Research - peer-review › Book chapter – Annual report year: 2012
This paper deals with a system-level design of a digital sigma-delta (∑∆) modulator for hearing-aid audio Class D output stage application. The aim of this paper is to provide a thorough discussion on various possibilities and tradeoffs of ∑∆ modulator system-level design parameter combinations - order, oversampling ratio (OSR) and number of bits in the quantizer - including their impact on interpolation filter design as well. The system is kept in digital domain up to the input of the Class D power stage including the digital pulse width modulation (DPWM) block. Notes on the impact of the DPWM block on the modulated spectrum are provided.
|Title of host publication||8th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)|
|State||Published - 2012|
|Conference||2012 8th Conference on Ph.D. Research in Microelectronics and Electronics|
|???event.location???||RWTH Aachen University|
|Period||12/06/2012 → 15/06/2012|
- Sigma-Delta modulator, Interpolation filter, Class D, Hearing aid, Low voltage, low power
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