Patent ID: 6512471
Filing Date: 2003-01-28
Classification: G06F,H03L,H03M,Y02D

Abstract:
Apparatus having an output line comprising:first, second, and third nodes, said second node defining the output line; a first capacitor between the first and second nodes; a second capacitor between the second and third nodes; a first switch selectably connecting said first node to either a first potential or a second potential; a second switch selectably connecting said second node via a first resistor to the first potential, to the second potential, or to an open connection; a third switch selectably connecting said second node via a second resistor to the first potential, to the second potential, or to an open connection, said second resistor smaller in value than the first resistor; a fourth switch selectably connecting said second node to the second potential or to an open connection; said first switch, second switch, third switch, and fourth switch each controlled by digital circuitry.