A Wideband Low Voltage Low Phase Noise 10-GHz SiGe Switchable VCO
نویسندگان
چکیده
This paper describes a fully integrated Silicon Germanium (SiGe) Voltage Controlled Oscillator (VCO) chip with 19% tuning range and low phase noise suitable for 10-Gb/s fiber optic transceivers and X-band applications. It consists of two switchable externally enabled VCO’s. The total chip tuning range is 9.2-11.1GHz when the varactor control voltage varies from 0 to 3.0V and the measured phase noise is –87dBc/Hz at 100KHz offset from carrier. The typical current consumption is 8mA for the VCO core at 3.3V voltage supply. The chip is implemented in SiGe BiCMOS7 technology intended for high volume production.
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