Abstract
A phase locked loop has a controlled oscillator for outputting an oscillator signal depending on a control signal. A comparator generates a comparison result from a comparison between a reference frequency signal and a feedback signal derived from the oscillator signal. The phase locked loop also has a filter block for filtering the comparison result and for deriving the control signal from the comparison result, where the filter block has a loop filter and a rejection filter for the frequency-selective attenuation of at least one first interference frequency in the comparison result.
| Original language | English |
|---|---|
| Patent number | US7692498B2 |
| Publication status | Published - 06 Apr 2010 |
Fields of science
- 202018 Semiconductor electronics
- 202028 Microelectronics
- 202027 Mechatronics
- 202 Electrical Engineering, Electronics, Information Engineering
- 102005 Computer aided design (CAD)
- 202037 Signal processing
- 202023 Integrated circuits
- 202006 Computer hardware
JKU Focus areas
- Digital Transformation