Calibrated delay lines for generation of accurate and programmable phase delays between outputs of frequency dividers
AssigneeSamsung Electronics Co., Ltd.
InventorsChung Y. Lau, Sai Krishna Rayudu
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Abstract
A system and a method are disclosed for generating accurate and programmable phase delay output signals, including a phase detector unit configured to determine a phase disparity signal based on a phase error between outputs of a frequency divider unit cell; a digital calibration logic unit configured to generate a control signal based on the phase disparity signal; and a tunable delay lines unit configured to generate the phase delay output signals based on the control signal.
Claims20
A method for generating accurate and programmable phase delay output signals, the method comprising:
- determining, via a phase detector unit, a phase disparity signal based on a phase error between two or more consecutive phase outputs of a frequency divider unit cell;
- generating, via a digital calibration logic unit, a control signal based on the phase disparity signal;
- and
- generating, via a tunable delay lines unit, the phase delay output signals based on the control signal.
An electronic device for generating accurate and programmable output signals, the electronic device comprising:
- a phase detector unit configured to determine a phase disparity signal based on a phase error between two or more consecutive phase outputs of a frequency divider unit cell;
- a digital calibration logic unit configured to generate a control signal based on the phase disparity signal;
- and
- a tunable delay lines unit configured to generate the phase delay output signals based on the control signal.
Dependencies are inferred from the claim text.