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Filtering by: Creator Sapon-White, Richard E. Remove constraint Creator: Sapon-White, Richard E. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Delta-sigma modulators employing continuous-time circuits and mismatch-shaped DACs

    Creator:
    Zhang, Bo
    Abstract:
    Delta-sigma modulators are currently a very popular technique for making high-resolution analog-to-digital and digital-to-analog converters. These oversampled data converters have several advantages over conventional Nyquist-rate converters, including an insensitivity to many analog component imperfections, a simpler antialiasing filter and reduced accuracy requirements in the sample and hold. Though the initial...
    Resource Type:
    Dissertation
    Full Text:
    that E is white with power 6, the in-band noise power for MOD1 is 2 x 162 IC 2 2 N2 e 1 1111(ei°)) 1

  • Lowpass and bandpass current-mode delta-sigma DACs employing mismatch-shaping

    Creator:
    Shui, Tao, 1969-
    Abstract:
    Delta-sigma modulators are currently a very popular technique for making high-resolution analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). These oversampled data converters have several advantages over conventional Nyquist-rate converters, including an insensitivity to many analog component imperfections, a simpler antialiasing filter and reduced accuracy requirements in the sample and hold....
    Resource Type:
    Dissertation
    Full Text:
    . Assuming that E is white with power se , the in-band noise power for MOD1 is 2 2 it 2 2 No(-5 Tc TE = ic

  • Multi-bit delta-sigma switched-capacitor DACs employing element-mismatch-shaping

    Creator:
    Lin, Haiqing
    Abstract:
    Delta-sigma modulators are currently a very popular technique for making high-resolution analog-to-digital and digital-to-analog converters (ADCs and DACs). Most delta-sigma modulators in production today employ single-bit quantization because a 1-bit DAC is inherently linear, whereas a multi-bit DAC is not. Were it not for this drawback, the use of multi-bit...
    Resource Type:
    Dissertation
    Full Text:
    quantization noise. Assuming that E is white with power 6e2, the in-band noise power is given as 0 dB 20

  • Experimental verification of a mismatch-shaping DAC

    Creator:
    Hudson, William Forrest, 1971-
    Abstract:
    Delta-sigma data converters have gained popularity in both analog-to-digital and digital-to-analog converters (ADCs and DACs) due to their simplicity, high linearity and immunity to many analog circuit imperfections. These data converters include features such as oversampling, noise-shaping, and (historically) single-bit quantization. Single-bit converters are preferred for their inherent linearity. This...
    Resource Type:
    Masters Thesis
    Full Text:
    : Experimental Verification of a Mismatch Shaping DAC. Abstract approved: Richard Schreier Delta-sigma data

  • Design of switched-current circuits for a bandpass delta-sigma modulator

    Creator:
    Manapragada, Praveen
    Resource Type:
    Masters Thesis
    Full Text:
    : Design of Switched-Current Circuits for a Bandpass Delta-Sigma Modulator. Abstract approved: Richard

  • Computer analysis of a class of acoustic signals

    Creator:
    Miller, Michael Robert
    Abstract:
    A procedure for displaying cursory computer analyses of time series acoustic signals is described. The graphic presentation is optimized for visual analysis. The results displayed represent time series signals and/or Power Spectral Density estimates. Both hardware and software components of the procedure are described and compared with current methods. Suggestions...
    Resource Type:
    Masters Thesis
    Full Text:
    . plots SIGNAL ENVELOPE/LOG SF P.S.D. 1024 041144 POINTS %WA A Nil N(111 Al 214 LINUI 110T.V.. N`e"-v

  • A Multiresolution Analysis of Temporal Logic

    Creator:
    Pelphrey, Richard E.
    Abstract:
    Is it possible to determine whether a signal violates a formula in Signal Temporal Logic (STL), if the monitor only has access to a low-resolution version of the signal? We answer this question affirmatively by demonstrating that temporal logic has a multiresolution structure, which parallels the multiresolution structure of signals....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Richard Pelphrey

  • 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
    Full Text:
    AN ABSTRACT OF THE THESIS OF Richard S. Lewison for the degree

  • Switched-current circuits for a bandpass delta-sigma modulator

    Creator:
    Pattamatta, Srinivas V.
    Resource Type:
    Masters Thesis
    Full Text:
    : Switched-Current Circuits for a Bandpass Delta-Sigma Modulator. Abstract approved: Richard Schreier Delta

  • A switched-current bandpass delta-sigma modulator

    Creator:
    Dalal, Vineet R.
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Richard Schreier Oversampled delta-sigma (AZ) data converters have become the method of choice