RFFC5071A Datasheet | Qorvo

Overview The RFFC5071A and RFFC5072A are re-configurable frequency conversion devices with integrated fractional-N phased locked loop (PLL) synthesizer, voltage controlled oscillator (VCO) and either one or two high linearity mixers. The fractional-N synthesizer takes advantage of an advanced sigma-delta modulator that delivers ultra-fine step sizes and low spurious products. The VCO features temperature pensation circuits that deliver stable performance across the operating temperature range of 40 °C to +85 °C. The PLL/VCO engine bined with an external loop filter allows the user to generate local oscillator (LO) signals from 85 MHz to 4200 MHz. The LO signal is buffered and routed to the integrated RF mixers which are used to up/down-convert frequencies ranging from 30 MHz to 6000 MHz. The mixer bias current is programmable and can be reduced for applications requiring lower power consumption. Both devices 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 mon serial bus. This eliminates the need for separate chip-select control lines between each device and the host controller. Up to six general purpose outputs are provided, which can be used to access internal signals (the LOCK signal, for example) or to control front end ponents. Both devices operate with a 2.7 V to 3.3 V power supply. Functional Block Diagram RFFC5072A Phase det. Ref. divider Synth Phase det. Ref. divider Synth Functional Block Diagram - Simplified Package: QFN, 32-Pin, 5mm x 5mm Key Features - 85 MHz to 4200 MHz LO Frequency Range - Fractional-N Synthesizer with Very Low Spurious Levels - Typical Step Size 1.5 Hz - Fully Integrated Low Phase Noise VCO and LO Buffers - Integrated Phase Noise - 0.18° rms at 1 GHz - 0.52° rms at 3 GHz - High Linearity RF Mixer(s) - 30 MHz to 6000 MHz Mixer...