Altera Cyclone II PowerPlay Early Power Estimator Manual do Utilizador descarregar pdf (Página 3)

Altera Corporation iii

Contents

About this User Guide ............................................................................. v

Revision History ........................................................................................................................................ v

How to Contact Altera .............................................................................................................................. v

Typographic Conventions ........................................................................................................................ v

Chapter 1. About the Cyclone II PowerPlay Early Power Estimator

Release Information ............................................................................................................................... 1–1

Device Family Support ......................................................................................................................... 1–1

General Description ............................................................................................................................... 1–1

Features ................................................................................................................................................... 1–2

Chapter 2. Setting Up the Cyclone II PowerPlay Early Power Estimator

System Requirements ............................................................................................................................ 2–1

Download & Install the PowerPlay Early Power Estimator Spreadsheet ..................................... 2–1

Estimating Power ................................................................................................................................... 2–1

Estimating Power Before Starting the FPGA Design .................................................................. 2–2

Estimating Power While Creating the FPGA Design ................................................................. 2–2

Estimating Power After Completing the FPGA Design ............................................................. 2–4

Entering Information into the PowerPlay Early Power Estimator ................................................. 2–4

Clearing All Values .......................................................................................................................... 2–4

Manually Entering Information ..................................................................................................... 2–5

Importing a File ................................................................................................................................ 2–5

Importing Information from Early Power Estimator Version 5.1 ............................................. 2–6

Chapter 3. Using the Cyclone II PowerPlay Early Power Estimator

Introduction ............................................................................................................................................ 3–1

PowerPlay Early Power Estimator Spreadsheet Inputs ................................................................... 3–1

Main Input Parameters .................................................................................................................... 3–1

Logic ................................................................................................................................................... 3–3

RAM Blocks ....................................................................................................................................... 3–7

Multiplier Blocks ............................................................................................................................ 3–11

General I/O Pins ............................................................................................................................ 3–13

Phase-Locked Loops ...................................................................................................................... 3–20

Clocks ............................................................................................................................................... 3–21

Power Analysis .................................................................................................................................... 3–23

Thermal Power ............................................................................................................................... 3–24

Thermal Analysis ........................................................................................................................... 3–26

Not Using a Heat Sink .............................................................................................................. 3–26

Using a Heat Sink ...................................................................................................................... 3–27

Power Supply Sizing (A) ............................................................................................................... 3–30

1 2 3 4 5 6 7 8 ... 47 48

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