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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tanzawa, T. Shibayama, H. Terauchi, R. Hisano, K. Ishikuro, H. Kousai, S. Kobayashi, H. Majima, H. Takayama, T. Agawa, K. Koizumi, M. Hatori, F. |
| Copyright Year | 2004 |
| Abstract | The frequency drift of an open-loop PLL is an issue for direct modulation applications such as Bluetooth transceivers. The drift mainly comes from the temperature variation of the VCO during the TX operation. In this paper, we propose the optimum location of the VCO, considering the temperature gradient through full-chip thermal analysis. Moreover, a novel temperature-compensated VCO by employing a new biasing scheme is proposed. The combination of these two techniques enables power reduction of the transmitter by 33% without sacrificing performance. |
| Sponsorship | IEEE Solid-State Circuits Soc |
| Starting Page | 273 |
| Ending Page | 276 |
| File Size | 365368 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780384954 |
| DOI | 10.1109/CICC.2004.1358796 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-10-06 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transmitters Voltage-controlled oscillators Bluetooth Frequency Phase locked loops Modulation Transceivers Energy consumption Temperature control Temperature dependence |
| Content Type | Text |
| Resource Type | Article |
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