RFFC2072

芯片, 射频合成器, 压控振荡器 混频器, 2.7GHZ, 32QFN

The is a re-configurable Frequency Conversion Device with integrated fractional-N phased locked loop synthesizer, voltage controlled oscillator VCO and either one or two high linearity mixers. The PLL/VCO engine combined with an external loop filter allows the user to generate local oscillator LO signals from 85MHz to 2700MHz. The LO signal is buffered and routed to the integrated RF mixers which are used to up/down-convert frequencies ranging from 30 to 2700MHz. The mixer bias current is programmable and can be reduced for applications requiring lower power consumption. The device can be configured to work as signal sources by bypassing the integrated mixers. Device programming is achieved via a simple 3-wire serial interface. In addition, a unique programming mode allows up to four devices to be controlled from a common serial bus.

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Fractional-N synthesizer with very low spurious levels

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1.5Hz Typical step size

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Integrated phase noise 0.18°rms at 1GHz

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High linearity RF mixer

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Input IP3 of +23dBm

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Mixer bias adjustable for low power operation