A fully integrated phase-locked loop (PLL) in a digital 0.5 μm CMOS technology is described. The PLL has a locking range of 15 to 240 MHz. The static phase error is less than 1100 ps with a peak-to-peak jitter of ±50 ps at a 100 MHz output frequency. The PLL has a resistorless architecture achieved by the implementation of feedforward current injection into the current controlled oscillator
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:30
,
Issue:
11
)
Date of Publication: Nov 1995