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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yan Wang Xianhe Huang |
| Copyright Year | 2012 |
| Description | Author affiliation: School of Automation, University of Electronic Science & Technology of China, No. 2006, Xiyuan Road, High-tech District(West), Chengdu, Sichuan Province, China (Yan Wang; Xianhe Huang) |
| Abstract | The methods to reduce phase noise of crystal oscillators are presented and analyzed in the paper. According to analysis of Leeson formula, phase noise has a direct relation with noise factor F, corner frequency f and loaded quality factor Q. Based on the method of reducing phase noise by improving Q, the formula of Q is derived by analysis of Pierce oscillator circuit and simulated by MATLAB. According to the simulation result, we can draw a conclusion that Q is explicitly related to circuit parameters. Based on this conclusion, phase noise of a Pierce crystal oscillator is simulated and analyzed by the Agilent Advanced Design System. The simulated phase noise results are reduced by adjusting circuit parameter. A design of the prototype 120 MHz Pierce crystal oscillator is presented and the experiments are carried out. The measured near carrier frequency phase noise can achieve −100 dBc/Hz@10Hz and −132 dBc/Hz@100Hz. The simulated and experimental results show that it is feasible to design low phase noise crystal oscillator based on improving Q. |
| Starting Page | 19 |
| Ending Page | 23 |
| File Size | 614952 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781467312752 |
| e-ISBN | 9781467312783 |
| DOI | 10.1109/ICMA.2012.6282340 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-08-05 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Phase noise Crystals Q factor Frequency measurement Integrated circuit modeling loaded quality factor crystal oscillator phase noise Leeson model |
| Content Type | Text |
| Resource Type | Article |
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