Altera PowerPlay Early Power Estimator User Manual

Page 14

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2–6

Altera

Corporation

PowerPlay Early Power Estimator For Arria GX FPGAs

May 2008

Entering Information into the PowerPlay Early Power Estimator

Importing a file from the Quartus II software populates all input
parameters on the main page that were specified in the Quartus II
software. These parameters include:

Family

Device

Package

Temperature grade

Power characteristics

Ambient or junction temperature

Heat sink

Airflow

Custom

θ

SA

or custom

θ

JA

Board thermal model

Custom

θ

JB

Board temperature

The ambient or junction temperature, airflow, heat sink, custom

θ

SA

, or

custom

θ

JA

board thermal model, custom

θ

JB

, and board temperature

parameters are optional. See

“Main Input Parameters” on page 3–1

for

more information on these parameters.

The f

MAX

values imported into the PowerPlay Early Power Estimator

spreadsheet are the same as the f

MAX

values specified by the designer in

the Quartus II software. You can manually edit the f

MAX

and the toggle

percentage in the PowerPlay Early Power Estimator spreadsheet to suit
your system requirements.

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