Abstract

A power-scalable sub-sampling phase-locked loop (SSPLL) is proposed for realizing dual-mode operation; high-performance mode with good phase noise and power-saving mode with moderate phase noise. It is the most efficient way to reduce power consumption by lowering the supply voltage. However, there are several issues with the low-supply millimeter-wave (mmW) SSPLL. This work discusses some techniques, such as a back-gate forward body bias (FBB) technique, in addition to employing a CMOS deeply depleted channel process (DDC).

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