Test Your Know How : Allegro in Design Analysis

Impedance is being measured against a 50 ohm target. That comes from the range of the chart and the units of measure used.

Impedance is being measured against a 50 ohm target. That comes from the range of the chart and the units of measure used.

Correct answer John – well done!

In this case, the unexpected trace impedance values was caused by a break in the planes.  See the solution image below.

The impedance analysis is just one of the IDA tools available for signal integrity. Filter and select critical nets in your design for trace impedance analysis. We can quickly navigate to the problem traces using the results table. Then fix trace thicknesses, stackup or associated planes to resolve all visually represented issues. This In Design Analysis allows us to easily analyse and resolve signal integrity issues for complex trace connections and get your design done right the first time.