Decoupling capacitor placement in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to place the decoupling capacitor as close as possible to the {{BLANK_1}} pin.

PCB Design

Place capacitor near the [1] pin to reduce noise.

Drag options to blanks, or click blank then click option'

Apower

Bground

Csignal

Dinput

Attempts:

3 left

💡 Hint

Common Mistakes

Placing capacitor near ground or signal pins instead of power pin.

The decoupling capacitor should be placed close to the power pin to stabilize voltage and reduce noise.

2fill in blank

medium

Complete the code to ensure the capacitor is connected with the shortest {{BLANK_1}} possible.

PCB Design

Use the shortest [1] to connect capacitor to power and ground.

Drag options to blanks, or click blank then click option'

Atrace

Bwire

Ccomponent

Dpad

Attempts:

3 left

💡 Hint

Common Mistakes

Using long wires or pads instead of short traces.

Short traces reduce inductance and resistance, improving capacitor effectiveness.

3fill in blank

hard

Fix the error in the placement instruction to avoid {{BLANK_1}} loops.

PCB Design

Avoid creating [1] loops when placing decoupling capacitors.

Drag options to blanks, or click blank then click option'

Aground

Bsignal

Cpower

Dcurrent

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing ground loops with current loops.

Current loops cause noise and interference; placement should minimize these loops.

4fill in blank

hard

Fill both blanks to correctly describe capacitor placement and connection.

PCB Design

Place capacitor [1] to the IC and connect [2] to the ground plane.

Drag options to blanks, or click blank then click option'

Aclose

Bfar

Cdirectly

Dindirectly

Attempts:

3 left

💡 Hint

Common Mistakes

Placing capacitor far or connecting indirectly to ground.

The capacitor should be placed close to the IC and connected directly to the ground plane for best performance.

5fill in blank

hard

Fill all three blanks to complete the best practice for decoupling capacitor placement.

PCB Design

Use a [1] capacitor, place it [2] to the power pin, and connect the [3] side to ground.

Drag options to blanks, or click blank then click option'

Aceramic

Bclose

Cnegative

Delectrolytic

Attempts:

3 left

💡 Hint

Common Mistakes

Using electrolytic capacitors or placing capacitor far from power pin.

Ceramic capacitors are preferred for decoupling. They should be placed close to the power pin, with the negative side connected to ground.