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Filtering by: Subject Pulse-duration modulation

Linearizing techniques for voltage controlled oscillator based analog to digital converters

Creator:

Rao, Sachin B.

Abstract:

Voltage controlled oscillator (VCO) based ADC is an important class of time-domain ADC that has gained widespread acceptance due to their several desirable properties. VCO-based ADCs behave like an open-loop continuous time ΔΣ modulator and achieve excellent resolution by first order noise shaping the quantization error. However, the SNDR of...

Resource Type:

Dissertation
A delta-sigma pulse width modulator with pulse dithering

Creator:

Lewison, Richard S.

Abstract:

Pulse Width Modulation (PWM) has been used extensively for motor control, DC-AC converters, DC-DC converters and in audio applications. The conventional method of generating a pulse width modulated signal involves generating an accurate sawtooth or triangle wave using analog circuits. In CMOS, being analog circuit intensive puts extra constraints on...

Resource Type:

Masters Thesis