3.2.2.1 Main Clock Circuitry

The main clock oscillator is implemented with the crystal oscillator ECS-240-10-37B2-JTN-TR.

For evaluation purposes, the user can mount a 1.6 mm x 1.2 mm size MEMS oscillator instead of the crystal, using the PCB footprint reservation (Y2). In that case, remove resistors R43 and R44, and populate resistors R45 and R46, and capacitors C77 and Y2.

Figure 3-11. Processor Main Clock Schematic