NCO IP Core: User Guide

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ID 683406
Date 11/06/2017
Public
Document Table of Contents
Document Table of Contents x
1. About the NCO IP Core 2. NCO IP Core Getting Started 3. NCO IP Core Functional Description A. NCO IP Core User Guide Document Archives 4. Document Revision History
1. About the NCO IP Core x
1.1. Intel® DSP IP Core Features 1.2. NCO IP Core Features 1.3. DSP IP Core Device Family Support 1.4. NCO IP Core MegaCore Verification 1.5. NCO IP Core Release Information 1.6. NCO IP Core Performance and Resource Utilization
2. NCO IP Core Getting Started x
2.1. Installing and Licensing Intel® FPGA IP Cores 2.2. IP Catalog and Parameter Editor 2.3. Generating IP Cores ( Intel® Quartus® Prime Pro Edition) 2.4. Simulating Intel® FPGA IP Cores
2.1. Installing and Licensing Intel® FPGA IP Cores x
2.1.1. Intel® FPGA IP Evaluation Mode 2.1.2. NCO IP Core Intel® FPGA IP Evaluation Mode Timeout Behavior
2.3. Generating IP Cores ( Intel® Quartus® Prime Pro Edition) x
2.3.1. IP Core Generation Output ( Intel® Quartus® Prime Pro Edition)
3. NCO IP Core Functional Description x
3.1. NCO IP Core Architectures 3.2. Multichannel NCOs 3.3. Frequency Hopping 3.4. Phase Dithering 3.5. Frequency Modulation 3.6. Phase Modulation 3.7. NCO IP Core Parameters 3.8. NCO IP Core Interfaces and Signals
3.1. NCO IP Core Architectures x
3.1.1. Large ROM Architecture 3.1.2. Small ROM Architecture 3.1.3. CORDIC Architecture 3.1.4. Multiplier-Based Architecture
3.7. NCO IP Core Parameters x
3.7.1. Architecture Parameters 3.7.2. Frequency Parameters 3.7.3. Optional Ports Parameters
3.8. NCO IP Core Interfaces and Signals x
3.8.1. Avalon-ST Interfaces in DSP IP Cores 3.8.2. NCO IP Core Signals 3.8.3. NCO IP Core Timing Diagrams
1. About the NCO IP Core
2. NCO IP Core Getting Started
3. NCO IP Core Functional Description
A. NCO IP Core User Guide Document Archives
4. Document Revision History

3.7.2. Frequency Parameters

Table 9.  Frequency Parameters
Parameter Value Description
Phase Accumulator Precision 4 to 64 Select the required phase accumulator precision. The phase accumulator precision must be greater than or equal to the specified angular resolution.
Angular Resolution 4 to 24 or 32 Select the required angular resolution. The maximum value is 24 for small and large ROM algorithms; 32 for CORDIC and multiplier-based algorithms.
Magnitude Precision 10 to 32 Select the required magnitude precision.
Implement Phase Dithering On or Off Turn on to implement phase dithering.
Dither Level Min to Max When phase dithering is enabled you can use the slider control to adjust the dither level between its minimum and maximum values,
Clock Rate 1 to 999 MHz, kHz, Hz, mHz, Select the clock rate using units of MegaHertz, kiloHertz, Hertz or milliHertz.
Desired Output Frequency 1 to 999 MHz, kHz, Hz, mHz, Select the desired output frequency using units of MegaHertz, kiloHertz, Hertz or milliHertz.
Phase Increment Value — Displays the phase increment value calculated from the clock rate and desired output frequency.
Real Output Frequency — Displays the calculated value of the real output frequency.
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