The technology disclosed is a Delta-Sigma Modulator with Noise Attenuating Feedback Filters, designed to achieve high-performance analog-to-digital conversion with a focus on enhancing the Signal-to-Noise Ratio (SNR) & Signal-to-Noise & Distortion Ratio (SNDR).

Technology Disclosure:

The disclosed patent involves technologies related to delta sigma modulation, specifically focusing on a M-bit delta sigma modulator with noise attenuating feedback filters. The key technologies disclosed include:

Delta Sigma Modulation (ΔΣM):

• The core technology revolves around delta sigma modulation, a method for high-resolution analog-to-digital conversion.

Integrator Design:

• Design & implementation of integrators, which are crucial components in delta sigma modulators. Integrators generate an integrated signal undergoes further processing.

Loop Filter Configuration:

• The loop filter, comprising a cascade of integrators, is an essential part of the delta sigma modulator. The configuration of the loop filter significantly impacts the overall performance of the modulator.

Analog-to-Digital Converter (ADC):

• The M-bit ADC is employed to convert the filtered analog signal to a digital signal. It may cover aspects of ADC design and its integration into the modulator.

Feedback Filters:

• It introduces noise attenuating feedback filters, specifically FIR filters, in feedback path. These filters play a crucial role in shaping the quantization noise spectrum.

Digital-to-Analog Converter (DAC):

• The Q-bit DAC is utilized to convert the filtered digital signal into a negative feedback analog signal. The characteristics of the DAC are likely to be relevant.

Chopping Technique:

• Uses chopping at a specific frequency (fchp), contributing to the modulation process.

Spectral Nulls:

• The technology involves the introduction of spectral nulls at multiples of 2*(fs/N), where N is greater than 2, to enhance the signal-to-noise characteristics.

FIR Filter Technology:

• The FIR filter, with a specific number of taps (L-taps), is employed in the feedback path. Design and characteristics of this filter are disclosed.

Technology Integration:

• The patent may cover how these technologies are integrated into a cohesive system to achieve the desired noise reduction and signal fidelity.

Method for Generating an M-bit Digital Signal:

1. Provide an Analog Input Signal
2. Generate an Integrated Signal in an Input Path
3. Filter Integrated Signal To Generate A Filtered Analog Signal
4. Convert The Filtered Analog Signal To A M-bit Digital Signal
5. Generate A Filtered Digital Signal
6. Convert The Filtered Digital Signal To A Negative Feedback Analog Signal