US 12,117,865 B2
Frequency generating device and operation method thereof
Wan-Lin Hsieh, Taoyuan (TW); Wen-Cheng Wang, Taoyuan (TW); and Sheng-Hsiang Kao, Taoyuan (TW)
Assigned to TXC Corporation, Taipei (TW)
Filed by TXC Corporation, Taipei (TW)
Filed on Dec. 19, 2022, as Appl. No. 18/083,589.
Prior Publication US 2024/0201726 A1, Jun. 20, 2024
Int. Cl. G06F 1/08 (2006.01); G06F 1/12 (2006.01); H03B 5/04 (2006.01); H03B 5/32 (2006.01)
CPC G06F 1/08 (2013.01) [G06F 1/12 (2013.01); H03B 5/04 (2013.01); H03B 5/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A frequency generating device, comprising:
an oscillator circuit, configured to generate a clock signal and adjust a clock frequency of the clock signal according to a control voltage; and
a processor circuit, coupled to the oscillator circuit and configured to generate the control voltage, wherein
the processor circuit reads a frequency aging rate value and a control voltage slope of the oscillator circuit from the oscillator circuit, calculates a control voltage regulation rate value corresponding to the frequency aging rate value and the control voltage slope, and compensates the control voltage based on the control voltage regulation rate value; and
the frequency aging rate value is related to a predicted frequency change rate of the clock signal at an expected time point, and the control voltage slope represents a slope of a relationship curve of the control voltage to the clock frequency.