Essays about: "Digital Frequency Synthesizer"

Showing result 1 - 5 of 7 essays containing the words Digital Frequency Synthesizer.

1. 1. Circuit design and hardware implementation of an analog synthesizer

   University essay from Uppsala universitet/Institutionen för materialvetenskap

   Author : Olle Murhed; [2023]
   Keywords : synthesizer; analogue; circuit design; sound; sound synthesis; oscillator; VCO; filter; amplifier; sequencer; control voltage; breadboard;

   Abstract : Since the heyday of analogue synthesizers in the 70's, they have largely been replaced by digital hardware and software synthesizers. However, in recent years, there has been a revival in analogue designs, possibly due to its ``warmer" sound. READ MORE

3. 2. Design and Simulation of Miscellaneous Blocks of an All-Digital PLL for the 60 GHz Band

   University essay from Elektroniksystem; Tekniska högskolan

   Author : Hadiyah Butt; Manjularani Padala; [2013]
   Keywords : ADPLL; PLL; DCO; TDC;

   Abstract : A phase-locked loop commonly known as PLL is widely used in communication systems. A PLL is used in radio, telecommunications, modulation and demodulation. It can be used for clock generation, clock recovery from data signals, clock distribution and as a frequency synthesizer. Most electronic circuits encounter the problem of the clock skew. READ MORE

4. 3. Design of a Rom-Less Direct Digital Frequency Synthesizer in 65nm CMOS Technology

   University essay from Elektroniska komponenter; Tekniska högskolan

   Author : Golnaz Ebrahimi Mehr; [2013]
   Keywords : Rom-Less DDFS; Current Steering Digital-to-Analog Converter; Interleaved DACs; Return-to-Zero; Sine weighted DAC;

   Abstract : A 4 bit, Rom-Less Direct Digital Frequency Synthesizer (DDFS) is designed in 65nm CMOS technology. Interleaving with Return-to-Zero (RTZ) technique is used to increase the output bandwidth and synthesized frequencies. The performance of the designed synthesizer is evaluated using Cadence Virtuoso design tool. With 3. READ MORE

5. 4. Investigation of Mechanisms for Spur Generation in Fractional-N Frequency Synthesizers

   University essay from Elektroniksystem; Tekniska högskolan

   Author : Sohail Imran Saeed; [2012]
   Keywords : DDSM; Digital Delta Sigma Modulator; EFM; Error Feedback Modulator; PLL Phase Locked Loop; Fractional N Frequency Synthesizer; Spur; Spurs;

   Abstract : With the advances in wireless communication technology over last two decades, the use of fractional-N frequency synthesizers has increased widely in modern wireless communication applications due to their high frequency resolution and fast settling time. The performance of a fractional-N frequency synthesizer is degraded due to the presence of unwanted spurious tones (spurs) in the output spectrum. READ MORE

6. 5. Using DSP technology to improve sound quality in active speakers

   University essay from Institutionen för teknik och naturvetenskap; Tekniska högskolan

   Author : Mattias Magnusson; [2010]
   Keywords : ;

   Abstract : Aditus Science has developed a system to improve the sound quality in speaker systems, using DSP technology. Software developed in MATLAB is being used to make measurements of the speakers via microphones. Based on those results, the parameters for the signal processing in the DSP can be set. READ MORE