Download NCO MegaCore function, v8.0 User Guide

Contents
Chapter 1. About This MegaCore Function
Release Information ............................................................................................................................... 1–1
Device Family Support ......................................................................................................................... 1–1
Features ................................................................................................................................................... 1–2
General Description ............................................................................................................................... 1–3
MegaCore Verification .......................................................................................................................... 1–4
Performance and Resource Utilization ............................................................................................... 1–4
Installation and Licensing .................................................................................................................... 1–6
OpenCore Plus Evaluation .............................................................................................................. 1–6
OpenCore Plus Time-Out Behavior ............................................................................................... 1–7
Chapter 2. Getting Started
Design Flows .......................................................................................................................................... 2–1
DSP Builder Flow .................................................................................................................................. 2–1
MegaWizard Plug-In Manager Flow .................................................................................................. 2–2
Generated Files ................................................................................................................................. 2–7
Simulate the Design ......................................................................................................................... 2–9
Simulating the Design in ModelSim ............................................................................................ 2–10
Compile the Design and Program a Device ..................................................................................... 2–10
Chapter 3. Parameter Settings
Setting Parameters ................................................................................................................................. 3–1
Parameter Descriptions ......................................................................................................................... 3–6
Chapter 4. Functional Description
Numerically Controlled Oscillators .................................................................................................... 4–1
Spectral Purity .................................................................................................................................. 4–1
Maximum Output Frequency ......................................................................................................... 4–2
Functional Description .......................................................................................................................... 4–3
Architectures ..................................................................................................................................... 4–5
Frequency Modulation .................................................................................................................... 4–8
Phase Modulation ............................................................................................................................ 4–9
Phase Dithering ................................................................................................................................ 4–9
Multi-Channel NCOs ..................................................................................................................... 4–10
Timing Diagrams ............................................................................................................................ 4–10
Avalon Streaming Interface .......................................................................................................... 4–13
Signals ................................................................................................................................................... 4–13
References ............................................................................................................................................. 4–14
Altera Corporation
May 2008
MegaCore Version 8.0
iii
NCO MegaCore Function User Guide