Decoupling capacitor placement rules in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the ideal placement of a decoupling capacitor relative to the power pin.

PCB Design

Place the decoupling capacitor as close as possible to the [1] pin to minimize inductance.

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

Apower

Bsignal

Cclock

Dground

Attempts:

3 left

💡 Hint

Common Mistakes

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

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

2fill in blank

medium

Complete the code to describe the recommended trace length for decoupling capacitors.

PCB Design

Keep the trace length between the capacitor and the IC power pin as [1] as possible to reduce parasitic inductance.

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

Along

Bshort

Cmedium

Dvariable

Attempts:

3 left

💡 Hint

Common Mistakes

Using long or medium trace lengths which increase noise.

Short trace length reduces parasitic inductance and improves capacitor effectiveness.

3fill in blank

hard

Fix the error in the statement about decoupling capacitor placement.

PCB Design

Decoupling capacitors should be placed [1] from the IC to avoid interference.

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

Afar

Babove

Crandomly

Dclose

Attempts:

3 left

💡 Hint

Common Mistakes

Placing capacitors far away which reduces effectiveness.

Capacitors must be placed close to the IC to effectively filter noise and stabilize voltage.

4fill in blank

hard

Fill both blanks to complete the rule about decoupling capacitor placement and routing.

PCB Design

Use a [1] connection to the power pin and a [2] connection to ground for the decoupling capacitor.

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

Ashort trace

Blong trace

Dvia

Attempts:

3 left

💡 Hint

Common Mistakes

Using long traces or vias which increase inductance.

Short traces to both power and ground pins minimize inductance and improve capacitor performance.

5fill in blank

hard

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

PCB Design

Place the capacitor [1] to the IC power pin, use [2] traces, and avoid [3] to minimize noise.

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

Aclose

Bshort

Cvias

Dfar

Attempts:

3 left

💡 Hint

Common Mistakes

Placing capacitor far, using long traces, or including vias.

Close placement, short traces, and avoiding vias reduce inductance and noise in power delivery.