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What is the configuration of the combined analogue audio and composite video 3.5mm jack on a Raspberry Pi 4?

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According to the official schematics of the Raspberry Pi 4 the configuration is:

  • Sleeve - Composite video (Testpint TP24)
  • Ring 2 - Ground (TP7, TP8, TP9, among others)
  • Ring 1 - Audio-Right (TP23)
  • Tip - Audio-Left (TP22)

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(source)

Incidentally the configuration is identical to the Pi 3 models.


Side note, the preliminary Raspberry Pi 4 Model B datasheet states that:

The analog audio output can drive 32 Ohm headphones directly.

  • It will not improve the quality of the audio output compared to RPi 3 models? – Ingo Jun 25 at 21:57
  • @Ingo, it looks pretty much the same. So I would guess it to be of similar quality. – Ghanima Jun 25 at 21:59

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