Altera Stratix IV GX Manual page 27

Chapter 1: Power Delivery Network (PDN) Tool User Guide for Stratix IV Devices
Design PCB Decoupling Using the PDN Tool
Figure 1–17
design goal.
Z
EFF
solution is to minimize the quantity and the type of capacitors needed to achieve a flat
impedance profile below Z
Figure 1–17. Decap Selection Tab in a Power-Sharing Design
© March 2009 Altera Corporation
shows one of the capacitor combinations that you can select to meet your
Figure 1–18 is the enlarged view of the Z
remains under Z up to F
TARGET
TARGET
EFF
. There are many combinations, but the ideal
EFFECTIVE
.
Power Delivery Network (PDN) Tool for Stratix IV Devices User Guide
plot. As shown in the plot,
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