Datasheet PAM8403 (Diodes) - 9
| Manufacturer | Diodes |
| Description | 3W Stereo Class D in SOP-16 package |
| Pages / Page | 11 / 9 — PAM8403. Application Information. How to reduce EMI (Electro Magnetic … |
| File Format / Size | PDF / 521 Kb |
| Document Language | English |
PAM8403. Application Information. How to reduce EMI (Electro Magnetic Interference)
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Text Version of Document
PAM8403 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 PAM8403 X X
Package Type Shipping Package D: SOP-16 R: Tape & Reel
Part Number Part Marking Package Type Standard Package
PAM8403 PAM8403DR SOP-16 2500 Units/Tape&Reel XATYWWLL
Marking Information
PAM8403 9 of 11 September 2020 Document number: DS36439 Rev. 2 - 3
www.diodes.com
© Diodes Incorporated Document Outline Pin Assignments Description Features Applications Package Outline Dimensions Suggested Pad Layout
(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 PAM8403 X X
Package Type Shipping Package D: SOP-16 R: Tape & Reel
Part Number Part Marking Package Type Standard Package
PAM8403 PAM8403DR SOP-16 2500 Units/Tape&Reel XATYWWLL
Marking Information
PAM8403 9 of 11 September 2020 Document number: DS36439 Rev. 2 - 3
www.diodes.com
© Diodes Incorporated Document Outline Pin Assignments Description Features Applications Package Outline Dimensions Suggested Pad Layout