High-dynamic Range Direct Demodulators
The Skyworks Solutions’ SKY73012 is an integrated, broadband, high-dynamic range quadrature demodulator with outputs that are differential and can be directly connected to most commonly available analog to digital (A/D) converters. It is also an appropriate solution for CDMA, UMTS, GSM/GPRS receivers, WiMAX (IEEE 802.16) radios, RFID readers, power amplifier (PA) feedback/linearization, wireless local loops (WLLs) and wireless local area networks (WLANs). The high dynamic range and second order input intercept point (IIP2) and IIP3 value of the SKY73012 make it suited for use in direct conversion and low intermediate frequency (IF) receivers. The device features integrated LO balun and amplifier, differential IF output, on-chip in-phase and quadrature (I/Q) phase splitter and a single +3.0 V supply.