A 400uW 3.6GHz-4.6GHz Low Power Cryogenic CP-PLL with Transformer-Based VCO in 28nm Bulk CMOS

A 400uW 3.6GHz-4.6GHz Low Power Cryogenic CP-PLL with Transformer-Based VCO in 28nm Bulk CMOS | IEEE Conference Publication | IEEE Xplore