Clocks, Clocks –16 – Altera PowerPlay Early Power Estimator User Manual

Page 28

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3–16

Chapter 3: Using Cyclone III PowerPlay Early Power Estimator

PowerPlay Early Power Estimator Inputs

Figure 3–9

shows the PLL Summary in the Quartus II software Compilation Report

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

Figure 3–10

shows the PLL section of the PowerPlay Early Power Estimator and the

estimated power consumed by PLLs.

Clocks

Cyclone III device family have up to 20 global clock networks.

Each row in the Clocks section represents a clock network or a separate clock domain.
You must enter the clock frequency (f

MAX

) in MHz and the total fan-out for each clock

network used.

Figure 3–9. PLL Summary in Compilation Report

Figure 3–10. PLL Section in the PowerPlay Early Power Estimator

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