Crash Course: Zo Scan Using SIwave
Introduction
This guide provides a step-by-step process for using SIwave to perform an impedance scan. Follow the instructions below to ensure accurate results.
Uploading Your File
- Start by uploading your file.
- Click on the Upload button.
- You will see all the types of files that SIwave can support, mainly IPC 2581 and ODB++.
Simulation Setup
- Go to the Simulation tab.
- Select Impedance Scan.
- Choose the lines you want to scan. Ensure you select differential lines if applicable, including extended differential options.
Adjusting Parameters
If you select multiple lines, you can adjust the numbers in the table:
- Nominal Number: The expected value.
- 10%: The warning threshold.
- 20%: The violation threshold.
Launching the Scan
Click Launch to start the scan.
Viewing Results
- Once the scan is complete, you can view the results.
- Hide all unnecessary elements and display only the traces.
- Interpret the color-coded results:
- Green: Differential lines, typically around 100 ohms.
- Cyan/Blue: Single lines, typically 50 ohms.
- Display the values, warnings, and violations.
Understanding the Results
SIwave filters all the lines based on their performance:
- Green: Very close to expected values.
- Orange: 10% or more deviation from expected values.
- Red: Exceeds 20% deviation from expected values.
Conclusion
By following these steps, you can effectively use SIwave to conduct an impedance scan and interpret the results accurately. For more information, contact Ozen Engineering, Inc.
Title: Crash Course: How to Scan Using SIwave Start by uploading your file. Click this button to see the types of files SI Wave supports, mainly IPC 2581 and ODB++. Go to Simulation, select Impedance Scan, and choose the lines you want to scan. Remember to select differential lines if applicable.
If you select multiple lines, you can change the numbers you see here from the table. The nominal number is the expected value, 10% is the warning threshold, and 20% is the violation threshold. Click "Launch" to view the results.
You can now show the results, hide everything, and display only the traces. Differential lines will appear in green, around 100, while single lines (50 ohm) will appear in cyan or blue. You can also display the values, including warnings and violations.
SI Wave filters lines as follows: green means very close to the expected value, orange indicates a 10% or greater difference, and red means a 20% or greater difference from the expected value.
