Ryan M Sparks

Year: 2022

  • Building a SAR-ADC

    Building a SAR-ADC

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    ryansparks
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    This project was done in collaboration with my teammates in EGR334 at ASU. Introduction Many analog-digital converters work by having a successive approximation register (SAR) digitally approximate (guess) a voltage, and having an op- amp comparator compare the guessed voltage to the analog input. The output of the comparator tells the SAR whether to increase…

  • FM vs. AM – Demodulating an FM signal using a phase-locked loop (PLL)

    FM vs. AM – Demodulating an FM signal using a phase-locked loop (PLL)

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    ryansparks
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    Phase-Locked Loops (PLLs) are a widely-used building block of technologies that require motor speed controls, tracking filters, frequency synthesis providing multiple of a reference signal frequency, and frequency shift keying or FSK that decodes for demodulation carrier frequencies. For our project, we will be using a phase-locked loop to demodulate an existing frequency modulated signal.…