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CC3220SF-LAUNCHXL: Harware questions

Luis Matty
Prodigy 200 points

Part Number: CC3220SF-LAUNCHXL

Why is the CC3220SF LaunchPad using a 0  Ohm resistor on the crystal Y3?

This resistor has a special funcion?

Thanks

  • 0
    TI__Mastermind 48781 points

    Luis,

    The 0ohm resistor is there as a provision for developers who want to experiment with an external oscillator (TCXO/XO).

    By replacing Y3 with an external oscillator of the same footprint, you would then remove the decoupling caps and replace the 0ohm resistor with an 82pF capacitor. See Section 5.15.5.4 in the CC3220 datasheet.

    BR,

    Seong