3.3.3 Clock Circuitry

Besides the embedded RC oscillators of SAMG55J19, two crystal oscillators are assembled on the PL360G55CF-EK board to obtain a more precise and stable system clock reference:

  • A 24 MHz clock signal, Y1, generated for the PLC transceiver PL360
  • A low-power 32.768 kHz crystal oscillator, Y2, for the SAMG55J19
Figure 3-7. 24 MHz Crystal Oscillator Scheme
Figure 3-8. 32.768 kHz Crystal Oscillator Scheme