Diodes PAM8301 - Manual (Page 8)

PAM8301
Document number: DSxxxxx Rev. 1 - 3
8 of 10
www.diodes.com
July 2013
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PAM8301
A Product Line of
Diodes Incorporated
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 at Figure 1. The ferrite filter depresses 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.
Figure 1: Ferrite Bead Filter to Reduce EMI
Ordering Information
Part Number Part Marking Package Type Standard Package
PAM8301AAF FPXYW TSOT26 3000 Unit/Tape&Reel