Dual-Band LC VCO Architecture With a Fourth-Order Resonator
A dual-band LC voltage-controlled oscillator (VCO) architecture suitable for GSM/PCS/DCS applications is presented. The VCO utilizes a fourth-order resonance tank and avoids quality-factor-deteriorating switches. The paper outlines the design tradeoffs and the VCO when using a fourth-order resonator...
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| Veröffentlicht in: | IEEE transactions on circuits and systems. 2, Analog and digital signal processing Analog and digital signal processing, 2007-03, Vol.54 (3), p.277-281 |
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| container_end_page | 281 |
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| container_title | IEEE transactions on circuits and systems. 2, Analog and digital signal processing |
| container_volume | 54 |
| creator | Tchamov, N.T. Broussev, S.S. Uzunov, I.S. Rantala, K.K. |
| description | A dual-band LC voltage-controlled oscillator (VCO) architecture suitable for GSM/PCS/DCS applications is presented. The VCO utilizes a fourth-order resonance tank and avoids quality-factor-deteriorating switches. The paper outlines the design tradeoffs and the VCO when using a fourth-order resonator. The 0.8-GHz/1.8-GHz test chip was fabricated in the 0.5-mum IBM-5AM SiGe process and has achieved phase noise of -134 dBc/Hz at a 1-MHz frequency offset from the carrier, with 56-MHz and 121-MHz tuning ranges in the corresponding bands. The VCO core consumes 15 mW from a 2.5-V power supply |
| doi_str_mv | 10.1109/TCSII.2006.888732 |
| format | Article |
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The VCO utilizes a fourth-order resonance tank and avoids quality-factor-deteriorating switches. The paper outlines the design tradeoffs and the VCO when using a fourth-order resonator. The 0.8-GHz/1.8-GHz test chip was fabricated in the 0.5-mum IBM-5AM SiGe process and has achieved phase noise of -134 dBc/Hz at a 1-MHz frequency offset from the carrier, with 56-MHz and 121-MHz tuning ranges in the corresponding bands. 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| identifier | ISSN: 1549-7747 |
| ispartof | IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 2007-03, Vol.54 (3), p.277-281 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Architecture Bands Circuits Distributed control Dual band Dual-band voltage-controlled oscillator (VCO) Germanium silicon alloys GSM multiband VCO Personal communication networks Resonance Resonators root locus Silicon germanides Silicon germanium Switches Tanks Testing Tuning Voltage-controlled oscillators |
| title | Dual-Band LC VCO Architecture With a Fourth-Order Resonator |
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