ΔΣ modulator (DSM)

A Fractional- N PLL With Space–Time Averaging for Quantization Noise Reduction

JSSC, 2020 (CICC invited submission)

An OTA-Less Second-Order VCO-Based CT ΔΣ Modulator Using an Inherent Passive Integrator and Capacitive Feedback

JSSC, 2020