Noise Floor Reduction in Frequency Delta-Sigma Modulation Microphone Sensors

Frequency delta-sigma modulator (FDSM) employing a variable frequency oscillator is a novel replacement of the classical delta-sigma modulators. This is advantageous for application to sensors, because an ADC can be intrinsically integrated with the sensors. We have already proposed to use this tech...

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Bibliographic Details
Main Authors: Koichi Maezawa, Masayuki Mori, Hiroya Andoh
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/10/3470