Today are going to discuss how to use Design Force rule editor to calculate track impedance.<\/p>\n
Calculate the track width value from the characteristic impedance and layer configuration by using a field solver.<\/p>\n
In [Layer Configuration] on the [Board Configuration] tab, set the thickness, resistivity, dielectric constant, and loss tangent values for all the layers.<\/p>\n
Also, set the reference plane layer that matches the following conditions<\/p>\n
A layer with the Layer attribute set to Power Plane is handled as a reference layer. If there is no Power Plane layer, a layer with the Electric layer type set to Power or Ground is handled as a reference plane. (The electric layer type of power or ground must be set for two or more layers.)<\/p>\n
If the layer to be calculated is a power or ground layer, the power or ground layer located closest (upward or downward) to that layer is handled as a reference layer.<\/p>\n
Click the [Calculate Char. Z -> Track Width] button in the upper part of the [Track width stack] table to open the dialog.<\/p>\n
From the track width stack list, select the track width stack.<\/p>\n
Set [Target Char. Z].<\/p>\n
Set the [Rounding precision for track width] value<\/p>\n
Calculate the track width value using a field solver until the specified rounding precision is reached.<\/p>\n
Click the [Calculate Track Width] button. The calculation result is displayed in the [Track width] cell.<\/p>\n
The range of track width that can be calculated is between 0.00001 mm and 5 mm.<\/p>\n
Click the [Apply calculated results to track width stack] button to apply the track width value obtained from the calculation to the track width rule stack.<\/p>\n
Click the [Calculate Diff. Z -> Track Width] button in the upper part of the [Differential pair rule stack] table to open the dialog.<\/p>\n
From the track width stack list, select the differential pair rule stack.<\/p>\n
Select [Calculation mode].<\/p>\n
Set the [Rounding precision for track width (spacing)] value
\nCalculate the track width and spacing values using a field solver until the specified rounding precision is reached.<\/p>\n
Click the [Calculate Track Width (Spacing)] button. The calculation result is displayed in the target cell (track width or spacing).
\nThe range of track width and spacing that can be calculated is between 0.00001 mm and 5 mm.<\/p>\n
Click the [Apply calculated results to diff. rule stack] button to apply the track width and spacing values obtained from the calculation to the differential pair rule stack.<\/p>\n","protected":false},"excerpt":{"rendered":"
Today are going to discuss how to use Design Force rule editor to calculate track impedance. Calculate the track width value from the characteristic impedance and layer configuration by using a field solver. In [Layer Configuration] on the [Board Configuration] tab, set the thickness, resistivity, dielectric constant, and loss tangent values for all the layers. […]<\/p>\n","protected":false},"author":67,"featured_media":11403,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[15320],"tags":[285,326,15364],"class_list":["post-10475","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-tips","tag-design-force","tag-cr8000-tech-tips","tag-electronic"],"acf":[],"yoast_head":"\n