CALIBRATION OF DYNAMIC ERROR IN HIGH RESOLUTION DIGITAL-TO-TIME CONVERTERS

摘要

A calibration system operates to calibrate or correct a digital-to-time converter (DTC) that comprises a detector component and a distortion correction component. The DTC can receive one or more signals and a digital code to generate a modulation signal by controlling an offset of the one or more signals based on the digital code. The detector component can comprise a TDC or another DTC that operates to measure a dynamic behavior in response to detecting nonlinearities of the modulation signal. The distortion correction component can generate a set of distortion data that removes the dynamic behavior from an output of the DTC based on the measurement.

主权项

1. A wireless system comprising:
a digital-to-time converter (DTC) configured to receive one or more signals and a digital code, and generate a modulation signal for a wireless signal by controlling an offset of the one or more signals based on the digital code; a detector component configured to receive the modulation signal and detect nonlinearities of the DTC, and generate a measurement of one or more properties of a dynamic error associated with the nonlinearities; and a distortion correction component configured to generate one or more distortion data that reduces the nonlinearities of the DTC based on the measurement.