AN 910: Intel Agilex® 7 Power Distribution Network Design Guidelines

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ID 683393
Date 12/04/2023
Public
Document Table of Contents
Document Table of Contents x
1. Intel Agilex® 7 Power Distribution Network Design Guidelines Overview 2. Power Delivery Overview 3. Board Power Delivery Network Recommendations 4. Board LC Recommended Filters for Noise Reduction in Combined Power Delivery Rails 5. PCB PDN Design Guideline for Unused Tiles 6. PCB Voltage Regulator Recommendation for PCB Power Rails 7. Board Power Delivery Network Simulations 8. Intel Agilex® 7 Device Family PDN Design Summary 9. Document Revision History for AN 910: Intel Agilex® 7 Power Distribution Network Design Guidelines
1. Intel Agilex® 7 Power Distribution Network Design Guidelines Overview x
1.1. Device Guidelines Status for Intel Agilex® 7 Devices
2. Power Delivery Overview x
2.1. Power Architecture 2.2. Rail Merger Requirements 2.3. Power Rails Specification 2.4. Decoupling Capacitors Recommendation
2.1. Power Architecture x
2.1.1. Power Budget 2.1.2. Power Tree
2.1.2. Power Tree x
2.1.2.1. Recommended Power Tree for the Intel Agilex® 7 Devices with only P-Tile and E-Tile in the Device Packages 2.1.2.2. Recommended Power Tree for the Intel Agilex® 7 AGI or AGF (with only F-Tile, or both F-Tile and R-Tile) Device Packages 2.1.2.3. Recommended Power Tree for the Intel Agilex® 7 AGM (with only F-Tile, or both F-Tile and R-Tile) Device Packages
2.3. Power Rails Specification x
2.3.1. Power Nets 2.3.2. Power Rails Tolerance 2.3.3. Power Nets and Transient Specifications
2.3.1. Power Nets x
2.3.1.1. Intel Agilex® 7 Package Power Nets and Subsystems Details
2.4. Decoupling Capacitors Recommendation x
2.4.1. Intel Agilex® 7 FPGA Packages Board-Level Decoupling Capacitors Summary 2.4.2. Intel Agilex® 7 E-Tile Board-Level Decoupling Capacitors Summary 2.4.3. Intel Agilex® 7 P-Tile Board-Level Decoupling Capacitors Summary 2.4.4. Intel Agilex® 7 F-Tile Board-Level Decoupling Capacitors Summary 2.4.5. Intel Agilex® 7 R-Tile Board-Level Decoupling Capacitors Summary
3. Board Power Delivery Network Recommendations x
3.1. Board Decoupling Capacitors and Power Flooding Guides 3.2. FPGA Core Fabric VCC Voltage Regulator Selection 3.3. Remote Sense Connections 3.4. Load Line Requirements 3.5. VCC Core Board Current Slew Rate
4. Board LC Recommended Filters for Noise Reduction in Combined Power Delivery Rails x
4.1. P-Tile Rail LC Filter Board Scheme and Connection 4.2. E-Tile Rail LC Filter Board Scheme and Connection 4.3. F-Tile Rail Board Connection and LC Filter Recommendation under Noisy Voltage Regulator 4.4. R-Tile Rail Board Connection and LC Filter Recommendation under Noisy Voltage Regulator
5. PCB PDN Design Guideline for Unused Tiles x
5.1. PDN Design Guideline for Unused E-Tile 5.2. PDN Design Guideline for Unused P-Tile 5.3. PDN Design Guideline for Unused R-Tile 5.4. PDN Design Guideline for Unused F-Tile
1. Intel Agilex® 7 Power Distribution Network Design Guidelines Overview
2. Power Delivery Overview
3. Board Power Delivery Network Recommendations
4. Board LC Recommended Filters for Noise Reduction in Combined Power Delivery Rails
5. PCB PDN Design Guideline for Unused Tiles
6. PCB Voltage Regulator Recommendation for PCB Power Rails
7. Board Power Delivery Network Simulations
8. Intel Agilex® 7 Device Family PDN Design Summary
9. Document Revision History for AN 910: Intel Agilex® 7 Power Distribution Network Design Guidelines

2.1.1. Power Budget

Intel® recommends you to use the Power Thermal Calculator (PTC) to determine the power for your applications. You must scale the recommended decoupling capacitors based on the scaling factor of the exact power consumption to the maximum power consumption.

The rule of thumb for scaling is to scale the number of suggested decoupling capacitors. For example, if your scale factor is 2, and you have 3 x 47µF capacitors as peripheral, the suggested decoupling capacitors on your board is 3/2 = (round it to 2) x 47µF.

Ensure that the recommended voltage regulator current in the board design must be larger than the total current for the merged power rails. Intel® recommends to add 30% margin for the voltage regulator current to ensure good reliability and thermal performance.

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