Impedance-controlled traces in PCB Design - Dashboard Guide

Dashboard Mode - Impedance-controlled traces

Goal

Understand how impedance-controlled traces affect signal quality and manufacturing cost in PCB design.

Sample Data

Trace ID	Length (mm)	Impedance (Ohms)	Signal Type	Manufacturing Cost ($)
T1	50	50	High-Speed	10
T2	75	75	High-Speed	12
T3	100	50	Low-Speed	8
T4	60	60	High-Speed	11
T5	80	50	Low-Speed	9
T6	90	75	High-Speed	13

Dashboard Components

• KPI Card: Average Impedance for High-Speed Signals
  Formula: Average impedance where Signal Type = 'High-Speed'
  Result: (50 + 75 + 60 + 75) / 4 = 65 Ohms
• KPI Card: Total Manufacturing Cost
  Formula: Sum of Manufacturing Cost for all traces
  Result: 10 + 12 + 8 + 11 + 9 + 13 = 63 $
• Bar Chart: Manufacturing Cost by Trace ID
  X-axis: Trace ID
  Y-axis: Manufacturing Cost ($)
  Shows cost differences per trace
• Line Chart: Impedance vs Length for High-Speed Traces
  X-axis: Length (mm)
  Y-axis: Impedance (Ohms)
  Plots impedance controlled traces for signal quality analysis
• Table: Filterable Trace Details
  Shows all columns with ability to filter by Signal Type and Impedance range

Dashboard Layout

+----------------------+----------------------+
|  KPI: Avg Impedance  |  KPI: Total Cost     |
|  (High-Speed) 65 Ω   |  $63                 |
+----------------------+----------------------+
|                      Bar Chart: Cost by Trace ID           |
|  (Horizontal bars showing cost per trace)                  |
+------------------------------------------------------------+
| Line Chart: Impedance vs Length (High-Speed Traces)        |
| (Scatter/line plot showing impedance changes with length)  |
+------------------------------------------------------------+
| Filterable Table: Trace Details                             |
| (Filter by Signal Type and Impedance)                      |
+------------------------------------------------------------+

Interactivity

Filters for Signal Type and Impedance range apply to the Table, Bar Chart, and Line Chart. Selecting a Signal Type updates all visuals to show only those traces. Adjusting Impedance range filters traces by impedance values. KPIs update dynamically based on filtered data.

Self Check

If you add a filter for Signal Type = 'Low-Speed', which components update?

• The KPI for Average Impedance (High-Speed) will not update because it only calculates for High-Speed signals.
• The Total Manufacturing Cost KPI will update to sum costs only for Low-Speed traces (T3 and T5: 8 + 9 = 17 $).
• The Bar Chart will update to show only Low-Speed traces.
• The Line Chart will be empty because it only shows High-Speed traces.
• The Table will show only Low-Speed traces.

Key Result

Dashboard shows impedance and cost analysis of PCB traces with filters for signal type and impedance.