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A low-IF very compact low power quadrature receiver for ZigBee applications is presented. The receiver saves area and power with a quadrature self oscillating mixer based on high Q bond-wire inductors. The prototype, integrated in CMOS 90 nm, provides 76 dB of maximum voltage gain, with a 10 dB noise figure, an IIP3 of -13 dBm and a phase noise of -124 dBc/Hz @ 3.5 MHz with an active area of only...
A complete analog front-end, with the exclusion of the frequency synthesizer, for FM broadcasting occupies 2.8 mm2 active area in a standard 0.35 mum CMOS technology. The use of current driven passive mixer and switch capacitor polyphase filter gives +100 dBmuV IIP3, 52 dB adjacent channel selectivity and +39 dB image rejection without trimming or tuning. The output noise is 390 nVparradic(Hz), with...
A GPS RF front-end combines the LNA, mixer, and VCO in a single stage and can operate from a 1.2V supply. The chip is implemented in a 0.13mum CMOS process and occupies 1.5mm2 active area. It consumes 5.4mW with a 4.8dB NF, 36dB gain, and a P1dBof -31dBm
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