Why power integrity ensures reliable operation in PCB Design - Dashboard Impact

Dashboard Mode - Why power integrity ensures reliable operation

Goal

Understand how power integrity affects the reliable operation of electronic circuits on a PCB.

Sample Data: Power Integrity Measurements

Test Point	Voltage (V)	Noise (mV)	Ripple (mV)	Operation Status
TP1	3.3	15	20	Stable
TP2	3.2	50	80	Unstable
TP3	3.3	10	15	Stable
TP4	3.1	60	90	Unstable
TP5	3.3	12	18	Stable

Dashboard Components

• KPI Card: Average Voltage
  Formula: Average of Voltage column
  Result: 3.24 V
• KPI Card: Average Noise Level
  Formula: Average of Noise (mV)
  Result: 29.4 mV
• KPI Card: Average Ripple
  Formula: Average of Ripple (mV)
  Result: 44.6 mV
• Bar Chart: Noise and Ripple by Test Point
  X-axis: Test Point
  Y-axis: Noise and Ripple values
  Shows noise and ripple levels for each test point to identify problem areas.
• Table: Operation Status by Test Point
  Shows which test points have stable or unstable operation related to power integrity.

Dashboard Layout

+----------------------+----------------------+----------------------+
|   Average Voltage     |   Average Noise      |    Average Ripple    |
|       (3.24 V)        |     (29.4 mV)        |      (44.6 mV)       |
+----------------------+----------------------+----------------------+
|                      Bar Chart: Noise and Ripple by Test Point          |
|                                                                       |
+-----------------------------------------------------------------------+
|                      Table: Operation Status by Test Point             |
+-----------------------------------------------------------------------+

Interactivity

A filter allows selecting specific test points. When a test point is selected, the KPI cards, bar chart, and operation status table update to show data only for that point. This helps focus on problem areas affecting power integrity and reliability.

Self Check

If you add a filter to show only test points with noise above 40 mV, which test points remain and how do the KPI cards update?

Answer: Test points TP2 and TP4 remain. The average voltage KPI updates to average voltage of TP2 and TP4 (3.15 V), average noise updates to 55 mV, and average ripple updates to 85 mV. The bar chart and table show only these two points with unstable operation status.

Key Result

Dashboard shows how power integrity metrics like voltage, noise, and ripple relate to stable or unstable operation on PCB test points.