| Presentation | 2002/9/20 A Calibration Method for High-Frequency PLL Synthesizer Yoshiyuki SHIBAHARA, Masaru KOKUBO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a calibration method for a high-frequency PLL synthesizer. As the frequency of the PLL synthesizer becomes high, a voltage-to-frequency conversion gain of a voltage-controlled oscillator (VCO) must be increased and PLL become sensitive to noise. The voltage-to-frequency conversion gain can be reduced by applying constant bias current to VCO and making the VCO minimum frequency offset from the zero frequency. In the conventional method, however, according to the large device variation of CMOS process, it is difficult to satisfy the desired frequency range and PLL might fail to lock. In our work, a self-calibration technique has been applied to adjust the tuning range automatically into the desired frequency band. Simulation result shows that the voltage-to-frequency conversion gain is reduced to 25% of the conventional VCO. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | PLL / Calibration / VCO / Low Voltage |
| Paper # | ICD2002-99 |
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| Committee | ICD |
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| Conference Date | 2002/9/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Calibration Method for High-Frequency PLL Synthesizer |
| Sub Title (in English) | |
| Keyword(1) | PLL |
| Keyword(2) | Calibration |
| Keyword(3) | VCO |
| Keyword(4) | Low Voltage |
| 1st Author's Name | Yoshiyuki SHIBAHARA |
| 1st Author's Affiliation | Central Research Laboratory, Hitachi Ltd() |
| 2nd Author's Name | Masaru KOKUBO |
| 2nd Author's Affiliation | Central Research Laboratory, Hitachi Ltd |
| Date | 2002/9/20 |
| Paper # | ICD2002-99 |
| Volume (vol) | vol.102 |
| Number (no) | 340 |
| Page | pp.pp.- |
| #Pages | 5 |
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