An embedded wide-range and high-resolution CLOCK jitter measurement circuit

摘要

The paper describes an embedded circuit for the single shot jitter measurement of the clock signal. Based on a jitter amplified technique with a pulse removing mechanism, the pico-second level resolution is achieved in the wide frequency range. In addition, a gain-locked loop calibration scheme is proposed to keep the amplification ratio constant under PVT variations. Fabricated by 0.13-um CMOS process, the tested circuit can achieve a resolution of 2 ps root mean square (rms) jitter at an input range from few tens of megahertz to 1.6 GHz.