Peak detector calibration
AssigneeInfineon Technologies AG
InventorsMatteo Bassi, Giovanni Boi, Dmytro Cherniak, Fabio Padovan
Life of this patent
Estimating the term…
Abstract
A calibration circuit for calibrating a peak detector configured to detect a signal peak amplitude of an oscillator, including: a calibration oscillator configured to be supplied by at least two different supply voltages to generate respective calibration signals; a calibration peak detector configured to detect a calibration signal peak amplitude of each of the calibration signals; and a logic circuit configured to calibrate the peak detector based on the detected calibration signal peak amplitudes.
Claims20
A calibration circuit for calibrating a peak detector configured to detect a signal peak amplitude of an oscillator, comprising:
- a calibration oscillator configured to be supplied by at least two different supply voltages to generate respective calibration signals;
- a calibration peak detector configured to detect a calibration signal peak amplitude of each of the calibration signals;
- and
- a logic circuit configured to calibrate the peak detector based on the detected calibration signal peak amplitudes.
An oscillator circuit, comprising:
- an oscillator configured to generate a signal;
- a peak detector configured to detect a signal peak amplitude of a signal of the oscillator;
- a supply voltage regulator configured to generate at least two different supply voltages;
- a calibration oscillator configured to be supplied by the at least two different supply voltages to generate respective calibration signals;
- a calibration peak detector configured to detect a calibration signal peak amplitude of each of the calibration signals;
- and
- a logic circuit configured to determine a gain of the calibration peak detector based on an interpolation of the detected calibration signal peak amplitudes, and calibrate the oscillator through the peak detector based on the determined gain.
A calibration method for calibrating a peak detector configured to detect a signal peak amplitude of an oscillator, the calibration method comprising:
- generating at least two different supply voltages;
- generating, by a calibration oscillator supplied by the at least two different supply voltages, respective calibration signals;
- detecting a calibration signal peak amplitude of each of the calibration signals;
- and
- calibrating the peak detector based on the detected calibration signal peak amplitudes.
Dependencies are inferred from the claim text.