INTERNAL JITTER TOLERANCE TESTER WITH AN INTERNAL JITTER GENERATOR

摘要

one embodiment of the present invention relate to internal jitter tolerance test device (an internal jitter tolerance tester). Internal jitter tolerance test device, the output of the phase detector, the gain multiplier, generate inside the cumulative jitter portion (or internal sinusoidal jitter generation unit), and a phase rotation unit comprises a digital loop filter configured click stacked portion between the stacked (or DCO) can. The inner cumulative jitter generation unit, PRBS generation unit may include a digital loop filter, an accumulation portion, and the gain control. It can be accumulated jitter generation unit, or replace parts inside the sinusoidal jitter generation. Internal sinusoidal jitter generation unit may include a counter, a sinusoidal jitter profile look-up tables, and the gain control.