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Clocks – Altera Cyclone II PowerPlay Early Power Estimator User Manual

Page 37

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Altera Corporation

3–21

May 2006

PowerPlay Early Power Estimator User Guide For Cyclone II FPGAs

Using the Cyclone II PowerPlay Early Power Estimator

Figure 3–17

shows the PLL Summary in the Quartus II software

Compilation Report for a design targeting a Cyclone II device. The
Compilation Report provides the VCO frequency of a PLL.

Figure 3–17. PLL Summary in Compilation Report

Figure 3–18

shows the Cyclone II device PowerPlay Early Power

Estimator spreadsheet and the estimated power consumed by PLLs in
this design.

Figure 3–18. PLL Section in the PowerPlay Early Power Estimator Spreadsheet

Clocks

Cyclone II devices have a total of 16 global clock networks. Cyclone II
devices do not have regional clock networks.