Intel® Stratix® 10 Analog to Digital Converter User Guide

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ID 683612
Date 2/09/2021
Public
Document Table of Contents
Document Table of Contents x
1. Intel® Stratix® 10 ADC Overview 2. Intel® Stratix® 10 ADC Architecture and Features 3. Intel® Stratix® 10 ADC Design Considerations 4. Intel® Stratix® 10 ADC Implementation Guides 5. Intel® Stratix® 10 ADC IP Core References 6. Intel® Stratix® 10 Analog to Digital Converter User Guide Archives 7. Document Revision History for the Intel® Stratix® 10 Analog to Digital Converter User Guide
1. Intel® Stratix® 10 ADC Overview x
1.1. Release Information for Voltage Sensor and Temperature Sensor Intel® FPGA IP Cores
2. Intel® Stratix® 10 ADC Architecture and Features x
2.1. Intel® Stratix® 10 Voltage Sensor 2.2. Intel® Stratix® 10 Temperature Sensing Diodes
2.1. Intel® Stratix® 10 Voltage Sensor x
2.1.1. Voltage Conversion
2.2. Intel® Stratix® 10 Temperature Sensing Diodes x
2.2.1. Internal Temperature Sensor 2.2.2. External Temperature Sensor 2.2.3. Temperature Sensor Channels and Locations 2.2.4. Temperature Sensor Error Codes
2.2.1. Internal Temperature Sensor x
2.2.1.1. Temperature Calculation for the Internal Temperature Sensor
3. Intel® Stratix® 10 ADC Design Considerations x
3.1. Guidelines: Selecting Temperature Sensing Chip to Interface with the Intel® Stratix® 10 External TSD 3.2. Guidelines: Using External Temperature Sensors 3.3. Guidelines: Calibrate Temperature Sensing Chip Interfacing the Intel® Stratix® 10 External TSD
4. Intel® Stratix® 10 ADC Implementation Guides x
4.1. Sampling the Intel® Stratix® 10 Voltage Sensor Channels 4.2. Reading the Intel® Stratix® 10 Internal Temperature Sensing Diodes
5. Intel® Stratix® 10 ADC IP Core References x
5.1. Voltage Sensor Intel® FPGA IP Digital Signals 5.2. Temperature Sensor Intel® FPGA IP Digital Signals
1. Intel® Stratix® 10 ADC Overview
2. Intel® Stratix® 10 ADC Architecture and Features
3. Intel® Stratix® 10 ADC Design Considerations
4. Intel® Stratix® 10 ADC Implementation Guides
5. Intel® Stratix® 10 ADC IP Core References
6. Intel® Stratix® 10 Analog to Digital Converter User Guide Archives
7. Document Revision History for the Intel® Stratix® 10 Analog to Digital Converter User Guide

3.2. Guidelines: Using External Temperature Sensors

Noise coupled from board traces or from within the Intel® Stratix® 10 device package can influence the sensitive TSD circuit. The signal from the device to the external temperature sensor is based on millivolts (mV) of difference at the external TSD pins. Switching the I/O near the external TSD pins can affect the temperature reading.

Intel recommends that you sample the temperature when the device is inactive or use the internal temperature sensor with the internal TSD.

You can use both internal and external temperature sensors simultaneously.

Board Connection Guidelines for the Traces to the External TSD Pins

  • Keep the trace lengths to the TEMPDIODEP or TEMPDIODEN pins less than eight inches.
  • Route both traces in parallel and place them close to each other with grounded guard tracks on each side.
  • Intel recommends a 10-mils width and space for both traces.
  • Route both traces through the most minimum number of vias and crossunders possible to minimize the thermocouple effects.
  • Ensure that the number of vias for both traces are the same.
  • Ensure that both traces are approximately the same length.
  • To avoid coupling, insert a GND plane between the external TSD pins traces and high-frequency toggling signals, such as clocks and I/O signals.
  • To filter high-frequency noise, place an external capacitor between the traces close to the external temperature sensing chip. For more details, refer to the third-party temperature sensing chip manufacturer design guidelines.
  • If you use only the internal TSD, you can leave the TEMPDIODEP and TEMPDIODEN pins unconnected.

For details about device specifications and connection guidelines, refer to the external temperature sensor manufacturer's datasheet.

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