Essays about: "Digital Modulator"

Showing result 1 - 5 of 28 essays containing the words Digital Modulator.

  1. 1. Design of a Differential Cross-Coupled Power LC Oscillator with ASK Modulation

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Sanjay Sarker; [2023]
    Keywords : Cross-coupled LC Oscillator; Amplitude Shift Keying ASK Modulator; Spiral Inductor; MIM Capacitor; Current Mirror Switching;

    Abstract : Rapid growth in the field of communications industry has led to newer opportunities and challenges in the design of CMOS based monolithic integrated circuits. ASK modulators are a class of digital modulators which are known for their relative simplicity of implementation for low cost applications in the industrial and biomedical domains. READ MORE

  3. 2. Designing and Evaluating a Delta-Sigma DAC for Hi-Fi Audio : To be used in an FPGA implementation

    University essay from Linköpings universitet/Datorteknik

    Author : Gustav Malmström; [2023]
    Keywords : Delta-Sigma; DAC;

    Abstract : This thesis describes the design of a digital-to-analog converter using a DeltaSigma modulator. The converter’s purpose is to be used for Hi-Fi audio. The thesis is limited to the digital domain of the converter, which is the digital interpolation filter and digital Delta-Sigma modulator. READ MORE

  4. 3. Techniques for High-Speed Digital Delta-Sigma Modulators

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Hsu Ching; [2016]
    Keywords : ASIC; Unfold; Pipeline; Higher Order; digital delta sigma modulator;

    Abstract : In this theses techniques for high-speed digital delta-sigma modulator(DDSM) structures are considered. Four techniques are applied andevaluated: unfolding, increasing the number of delay elements in theinner loop, pipelining/retiming, and optimizations provided by thesynthesis tool. Of interest is to see the speed-area-power trade-offs. READ MORE

  5. 4. System Level Modeling and Verification of All-digital Phase-locked Loop

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Chi Zhang; [2015]
    Keywords : ;

    Abstract : In wirelesscommunication systems, a local oscillator (LO) aims at demodulating radio-frequency signals into baseband signals. The performance of these signals determines the quality of communications which is highly affected by the phase accuracy of local oscillators. READ MORE

  6. 5. Micro-Power Inverter-Based Continuous-Time Sigma-Delta Modulator for Biosensor Applications

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Jiazuo Chi; [2014]
    Keywords : ;

    Abstract : Biosensor applications have made promising progress during the last decade, presenting potentials and challenges at the same time. Meanwhile, digital signal processing (DSP) has become even more powerful than before, due to Moore's Law. READ MORE