A 720µW 873MHz–1.008GHz injection-locked frequency multiplier with 0.3V supply voltage in 90nm CMOS

A 0.3V parametric resonance based sub-GHz injection-locked frequency multiplier is developed in 90nm CMOS. This is the first reported variation-tolerant frequency multiplier with 0.3V supply voltage. It achieves 720μW power consumption and -110dBc@600kHz phase noise with the lowest supply voltage in state-of-the-art frequency synthesizers.