Noise Aware Decoupling Capacitors for Multi-Voltage Power Distribution Systems

— Multiple power supply voltages are often used in modern high performance ICs such as microprocessors to decrease power consumption without affecting circuit speed. The system of decoupling capacitors used in power distribution systems with multiple power supplies is described in this paper. In order to minimize the total impedance of a multi-voltage power delivery system as seen from a particular power supply, a decoupling capacitor is placed between the power supplies. The noise at one power supply can couple into the other power supply, causing power and signal integrity problems in the overall system.

• Type: Conference
• Year: 2005
• Where: ISQED
• Authors: Mikhail Popovich, Eby G. Friedman
• Keywords: Hardware, ISQED 2005, Multiple Power, Power Supply, Power Supply Voltages