PAM8403H Datasheet, PDF (9/11 Pages) Diodes Incorporated – FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER

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Diodes Incorporated
PAM8403H
Application Information (cont.)
How to Reduce EMI (Electro Magnetic Interference)
A simple solution is to put an additional capacitor 1000µF at power supply terminal for power line coupling if the traces from amplifier to speakers
are short (<20cm).
Most applications require a ferrite bead filter as shown in Figure 2. The ferrite filter reduces EMI of around 1MHz and higher. When selecting a
ferrite bead, choose one with high impedance at high frequencies, and low impedance at low frequencies.
Ordering Information
Figure 2. Ferrite Bead Filter to Reduce EMI
Part Number
PAM8403DR-H
Part Marking
PAM8403
XXXYWWLL
Package Type
SOP-16
Standard Package
2500 Units/Tape&Reel
PAM8403H
Document number: DSxxxxx Rev. 1 - 0
9 of 11
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November 2012
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