Diodes PAM8403 - Manual (Page 9)

PAM8403
Document number: DSxxxxx Rev. 1 - 4
9 of 11
www.diodes.com
November 2012
© Diodes Incorporated
PAM8403
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 in Figure 2. The ferrite filter reduces EMI of around 1 MHz and higher. When selecting a
ferrite bead, choose one with high impedance at high frequencies, and low impedance at low frequencies.
Figure 2: Ferrite Bead Filter to Reduce EMI
Ordering Information
Part Number Part Marking Package Type Standard Package
PAM8403DR
PAM8403
XATYWWLL
SOP-16 2500 Units/Tape&Reel
Marking Information