Altera PowerPlay Early Power Estimator Bedienungsanleitung PDF herunterladen (Seite 15)

Altera Corporation 3–1

May 2008 Preliminary

Chapter 3. Using the

PowerPlay Early Power

Estimator

Introduction

The PowerPlay Early Power Estimator spreadsheet provides the ability to

enter information into sections based on architectural features. The

PowerPlay Early Power Estimator spreadsheet also provides a subtotal of

power consumed by each architectural feature and is reported in each

section in watts (W).

PowerPlay Early

Power Estimator

Inputs

The following sections of the user guide explain what values you need to

enter for each section of the PowerPlay Early Power Estimator. The

different Microsoft Excel worksheets of the PowerPlay Early Power

Estimator spreadsheet are referred to as sections. Sections in the

PowerPlay Early Power Estimator spreadsheet calculate power

representing architectural features of the device, such as clocks, RAM

blocks, or DSP blocks.

Main Input Parameters

Different devices consume different amounts of power for the same

design. The larger the device, the more power it consumes because of the

larger die and longer interconnects in the device.

In the Main section, you may enter the following parameters for the

device and design:

■ Family

■ Device

■ Package

■ Temperature grade

■ Power characteristics

■ Ambient or junction temperature

■ Airflow

■ Heat sink used

■ Custom heat sink information

■ Board thermal model

■ Custom board thermal model information

■ Board temperature

1 Parameters required depend on whether junction temperature

is entered manually or auto-computed.

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Altera PowerPlay Early Power Estimator Bedienungsanleitung Seite 15