Supply Voltage Drop Study Considering On-Chip Self Inductance of a 32-bit Processor's Power Grid
Paper in proceedings, 2009

Conventional IR drop analysis suggests that on-chip inductive effects can be neglected when estimating supply voltage drops. We present a supply voltage drop analysis for a commercial 32-bit application processor. Our power grid model uses a backbone RL extracted netlist of the processor's power grid, complemented with capacitances from the processor design and a current signature defined by the worst-case switching test vector, located in the power-up sequence of the processor. Our circuit simulations show that on-chip self inductance makes the actual supply voltage drop deviate by more than 55% and 25% from the ∼6% and ∼8% drop, respectively, of nominal supply voltage that a conventional IR power grid model yields.

Author

Daniel Andersson

Atmel Norway AS

Björn Nilsson

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Johnny Pihl

Atmel Norway AS

Lars Svensson

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Per Larsson-Edefors

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

2009 IEEE Workshop on Signal Propagation on Interconnects, SPI '09; Strasbourg; France; 12 May 2009 through 15 May 2009

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/SPI.2009.5089853

ISBN

978-142444489-2

More information

Created

10/7/2017