Tunable power distribution network and method of use thereof

摘要

An improved power distribution network comprises a substrate, an integrated circuit mounted on the substrate, first and second tunable decoupling capacitors mounted on the substrate, and a third decoupling capacitor formed in the integrated circuit. The power supply pin is connected to the first, second, and third capacitors; and the first and second capacitors are connected to the third capacitor as well. The capacitance values of the first and second tunable decoupling capacitors may be adjusted to reduce the magnitude of the system level impedance at least at those frequencies having substantial signal jitter to power noise sensitivity.

主权项

1. A power distribution network comprising:
first and second decoupling capacitors; an integrated circuit; a third capacitor formed in the integrated circuit; and a first electrical interconnection path coupling to a first lead of the first capacitor, a second electrical interconnection path coupling to a first lead of the second capacitor, a third electrical interconnection path coupling the first lead of the first capacitor to a first lead of the third capacitor, a fourth electrical interconnection path coupling the first lead of the second capacitor to the first lead of the third capacitor, and a fifth electrical interconnection path coupling to the first lead of the third capacitor.