LOOP BANDWIDTH CONTROL FOR FRACTIONAL-N FREQUENCY SYNTHESIZER
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Oct 21, 2024
filing date -
Oct 21, 2024
priority date (Note) -
Published
status (Latency Note)
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Abstract
Systems and methods for controlling a charge pump current in response to a control voltage provided to a voltage-controlled oscillator (VCO) are disclosed. An example system includes a phase-locked loop including a charge pump and a VCO coupled to the charge pump. Current adjusting circuitry receives the control voltage and controls the charge pump current. The current adjusting circuitry is configurable to cause the charge pump current to increase by a first amount responsive to the control voltage being in a first range, and cause the charge pump current to decrease by a second amount responsive to the control voltage being in a second range. A chirp signal output by the phase-locked loop has a bandwidth defined by a first bandwidth segment that corresponds to the control voltage being in the first range and a second bandwidth segment that corresponds to the control voltage being in the second range.
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International Classification(s)
- 2024 Application Filing Year
- H03L Class
- 155 Applications Filed
- 14 Patents Issued To-Date
- 9.04 % Issued To-Date
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