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Showing 1 to 4 of 4 for “"Reference spur"”.
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Frequency Locking Techniques Based on Envelope Detection for Injection-Locked Signal Sources
… use. Furthermore, they suffer from significant reference spur issues. This dissertation presents novel frequency generation techniques based on envelope detection for low-phase-noise signal generation using injection-locked frequency multipliers (ILFMs). Several calibration techniques using …
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Multi-Bit Delta -Sigma Modulation Technique for Fractional-N Frequency Synthesizers
… multi-bit Delta-Sigma modulation technique as a spur reduction method to enhance the overall synthesizer performance, and the oversampling modulator performance is analyzed with the consideration of practical design aspects for frequency synthesizers. A prototype fractional- N frequency …
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Design and analysis of high performance low noise oscillators and phase lock loops
… been designed which is extremely successful at reference spur suppression.<br/><br/>Simulation results based on the proposed model and foundry BSIM3v3 models are provided for all the VCO and PLL designs. To validate the proposed VCO topology and VCO model, two prototype chips have been …
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Digital enhancement techniques for fractional-N frequency synthesizers
… bandwidth at 4.5GHz output frequency using 50MHz reference. The PLL achieves excellent jitter performance of 490fsrms, while consumes only 3.7mW. This translates to the best reported jitter-power figure-of-merit (FoM) of -240.5dB among previously reported FNPLLs. Phase noise performance of ring …