US 11,705,917 B2
Time measurement of a clock-based signal
Mihail Jefremow, Augsburg (DE); Ketan Dewan, Unterhaching (DE); Rex Kho, Holzkirchen (DE); Ralph Mueller-Eschenbach, Munich (DE); and Juergen Schaefer, Oberhaching (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Sep. 7, 2021, as Appl. No. 17/467,767.
Claims priority of application No. 10 2020 123 859.2 (DE), filed on Sep. 14, 2020.
Prior Publication US 2022/0085824 A1, Mar. 17, 2022
Int. Cl. H03M 1/12 (2006.01); G01R 31/317 (2006.01); G06F 1/10 (2006.01)
CPC H03M 1/1245 (2013.01) [G01R 31/31709 (2013.01); G06F 1/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for time measurement of a clock-based signal comprising:
a sample stage arranged to transform an analog input signal to an analog output signal and comprising:
a switching device that is driven by a control signal, wherein the clock-based signal is applied to the control signal, and
a capacitance (Cs) at an analog output on which the analog output signal is provided,
an analog-to-digital converter coupled to the analog output and configured to convert the analog output signal into a digital output signal, and
a controller coupled to the analog-to-digital converter and configured to determine a jitter of the clock-based signal based on the digital output signal.