RDA5990PintegratesRDA5990,PowerAmplifierandantennaswitchintoonechipandisoptimizedformobile applications.WLAN,BluetoothandFMcanworksimultaneouslyandindependently,withlowpowerconsumption levelstargettobatterypowereddevices.Forthehighestintegrationlevel,therequiredboardspacehasbeen ...
wherein the said two differential signals are a first differential signal with the phase of 0 degree and a second differential signal with the phase of 180 degree, respectively; a quadrature voltage-controlled oscillator, to output four local oscillation (LO) signals with phase difference of 90 ...