51.6.2 Crystal Oscillator
The crystal should be located as close to the device as possible. Long signal lines may cause too high load to operate the crystal, and cause crosstalk to other parts of the system.
Signal Name | Recommended Pin Connection | Description |
---|---|---|
XIN | Load capacitor CLEXT(1)(2) | External crystal between 0.4 to 32MHz |
XOUT | Load capacitor CLEXT(1)(2) |
Note:
- Use the equation in Crystal Oscillator Characteristics to calculate CLEXT.
- The capacitors should be placed close to the device for each supply pin pair in the signal group.