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Traduzione in corso passo 9

Passo 9
Finally, the bottom of the interface board. Of interest, what appears to be a small DC-DC converter of unknown purpose. The iPad only supplies 3.3v. For the USB camera connection adapter, a DC-DC converter is required to provide the 5V to run USB devices. However, SD cards run natively on 3.3v, leaving the purpose of the DC-DC a mystery. Tiny package marked only with patterned dots, likely for computer recognition.
  • Finally, the bottom of the interface board. Of interest, what appears to be a small DC-DC converter of unknown purpose. The iPad only supplies 3.3v. For the USB camera connection adapter, a DC-DC converter is required to provide the 5V to run USB devices. However, SD cards run natively on 3.3v, leaving the purpose of the DC-DC a mystery.

  • Tiny package marked only with patterned dots, likely for computer recognition.

  • Little tiny SMT inductor. Unmarked.

  • CEY and some dots. Location near inductor leads to it being likely it is the DC-DC converter IC. 6 Pin package.

  • 94F5LF - Very small package, Likely BGA.

  • ET ZD - 4 Pin Package.

  • 1200P E06AA - Almost certainly a canned clock oscillator. Probably some permutation of 12 MHz.

  • 3 Small 6 pin packages. Pin arrangement leads me to believe they are ferrites or some sort of filter. Probably part of power supply

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