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- Title
A fast automatic frequency calibration technique for a 2-6 GHz frequency synthesizer.
- Authors
Jeong, Chan‐Young; Choi, Dong‐Ho; Yoo, Changsik
- Abstract
A fast automatic frequency calibration (AFC) technique is described. For fast AFC operation while eliminating the uncertainty of the initial phase relationship between the reference clock and voltage-controlled oscillator output, two-phase reference clocks are employed. The proposed AFC scheme is applied to a 2-6 GHz frequency synthesizer. The frequency synthesizer is implemented in a 0.18 µm complementary metal-oxide-semiconductor process and occupies 0.92 mm2 while the AFC occupies only 0.01 mm2. The AFC operation is completed in less than 1.6 µs. Copyright © 2012 John Wiley & Sons, Ltd.
- Subjects
AUTOMATIC frequency control; CALIBRATION; FREQUENCY synthesizers; AUDIO-frequency oscillators; CLOCKS &; watches
- Publication
International Journal of Circuit Theory & Applications, 2014, Vol 42, Issue 3, p309
- ISSN
0098-9886
- Publication type
Article
- DOI
10.1002/cta.1853