A capacitively-coupled 5GHz CMOS LC oscillator with bias tuning capability
| Autor: | S. Vatti, Christos Papavassiliou |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Operating point
Materials science Electronic oscillator business.industry Frequency drift Transistor Electrical engineering dBc Hardware_PERFORMANCEANDRELIABILITY Condensed Matter::Mesoscopic Systems and Quantum Hall Effect law.invention Computer Science::Hardware Architecture CMOS Hardware_GENERAL law Phase noise Hardware_INTEGRATEDCIRCUITS business Voltage reference Hardware_LOGICDESIGN |
| Zdroj: | 2007 50th Midwest Symposium on Circuits and Systems. |
| ISSN: | 1548-3746 |
| DOI: | 10.1109/mwscas.2007.4488633 |
| Popis: | A novel bias and tuning scheme for capacitively cross-coupled inductance-capacitance (LC) oscillators is presented. This scheme allows more flexibility in defining the operating point of the cross-coupled transistors, together with wide frequency tunability. A capacitively coupled LC oscillator at 5 GHz has been designed in CMOS UMC 0.18 mum technology. The bias network is realized with an all-transistor voltage reference. The oscillator is tunable in the 5 GHz-9 GHz frequency range. Phase noise performance is maintained over the entire frequency range, with -58 dBc/Hz at 100 kHz offset and -116 dBc/Hz at 1 MHz. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|