Active phase cancellation for inductor/capacitor networks

Abstract

An apparatus and a method for active case cancellation for an inductor/capacitor network have been presented. One embodiment of the method includes generating a derivative of an input to a die from a package, the derivative being out of phase relative to the input. The method further comprises substantially canceling resonance between an inductance of the package and a capacitance of the die with the derivative.

1 . A method comprising: 
 generating a derivative of an input to a die from a package, the derivative being out of phase relative to the input; and    substantially canceling resonance between an inductance of the package and a capacitance of the die with the derivative.    
   
   
       2 . The method of  claim 1 , wherein generating the derivative comprises driving an inductor that is substantially equal to the inductance of the package.  
   
   
       3 . The method of  claim 1 , wherein generating the derivative comprises driving a bulk capacitor with an amplifier.  
   
   
       4 . The method of  claim 3 , wherein generating the derivative further comprises driving the amplifier with a plurality of current drawing modules in the die, the plurality of current drawing modules being coupled to the amplifier via a plurality of pre-emptive resistors.  
   
   
       5 . The method of  claim 3 , wherein the bulk capacitor is external to the die and the amplifier is on the die.