A standard power-efficient design utilizes a three-stage cascaded structure to balance hardware complexity and performance:
Reducing the sampling frequency from the oversampled frequency ( ) to the Nyquist rate ( 3. Recommended Multi-Stage Architecture Power Efficient Digital Decimation Filters for ...
Report: Power-Efficient Digital Decimation Filters for Delta-Sigma ADCs Theoretical Background
This report outlines the architectural principles and design methodologies required to develop state-of-the-art power-efficient digital decimation filters, primarily used in Sigma-Delta Analog-to-Digital Converters (ADCs) for applications such as wireless transceivers and biomedical IoT devices. 1. Executive Summary Power Efficient Digital Decimation Filters for ...
Power-efficient decimation filters are critical for reducing the high-speed bitstream of a modulator to the Nyquist rate while maintaining a high Signal-to-Noise Ratio (SNR). Modern designs achieve significant power reductions (up to 28.6%) and area savings (up to 47.9%) by employing hybrid multi-stage architectures and specialized encoding schemes. 2. Theoretical Background