PAM8403

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Design Notes PAM8403

  • Two ends of C32 and C34 must connect over PVDD and PGND.

To prevent to noises to speaker:

  1. Pin 3 and Pin 14 should go under the IC to the speaker
  2. Pin 4 and Pin 13 should NOT go under the IC to the speaker
  3. Pin 2 and Pin 15 should NOT go under the IC to the speaker
  • Pin 6 VDD should separated with PVDD, pass C36 cap and after relatively long distance, and finally connect to VCC pin from two trace lines (to make this distance).
  • Not recommended to use single layer board.
  • circuits in the dot line box is optional.