What is Signal Integrity?
The main purpose of signal integrity is to maintain integrated signal transmission and prevent it from interferences. The results of signal tests can be affected by the following factors:
1. Testing Point
2. The welding angle of DUT
3. The length of the signal-adopted line
4. Interference from surrounding elements
5. Bridged to signal plates
6. Measuring means
Different locations of testing points could lead to different testing results
Next, we are going to demonstrate the difference in test results of various testing points with the following MIPI D-Phy testing.
Yellow Circle: The distance, as well as greater impedance from obstacles along the lines, will affect the signal’s ascending capabilities. The duration of signal transmission can be used to determine whether the result is successful or not.
The Importance of Signal Integrity Testing
As engineering technology evolves, the development of new products begins to take various external factors into consideration. As a result, signal integrity testing has become more complex. Allion’s team of professionals and precise instruments can help vendors to identify potential risks in products so as to avoid the need to debug and revise the products after they are launched to the market. The following are Allion’s testing items. If the test result is a fail, it corresponds to the potential risks of the product:
A complete signal integrity solutions for your products
Our labs are equipped with versatile instruments and fixtures, and a technical team who provides consultation for our clients and create diverse signal testing solutions based on their needs.
The Scope of Allion’s Testing Capabilities
Through the following cases of eMMC HS200 Data testing, Allion demonstrates how the use of fixture will affect the results.
The reflective signal (red circle in the center) in the graph below indicates that signal jitter is smaller when using fixtures, thereby providing a more stable signal. Signals without any fixture panels have greater fluctuations and are not as stable.
Introducing Allion’s Testing Instruments
Introducing Allion’s Main Fixtures