| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| fLFXO |
External crystal frequency |
32.768 | kHz | ||
| fTOL_LFXO_BLE |
Frequency tolerance requirement, Bluetooth Low Energy applications |
±500 | ppm | ||
| fTOL_LFXO_ANT |
Frequency tolerance requirement for ANT applications |
±50 | ppm | ||
| CL_LFXO |
Load capacitance |
7 | 9 | pF | |
| C0_LFXO |
Shunt capacitance |
1 | 2 | pF | |
| RS_LFXO |
Equivalent series resistance |
60 | 90 | kΩ | |
| PD_LFXO |
Drive level |
0.5 | μW | ||
| Cpin |
Input capacitance on XL1 and XL2 pads when internal capacitor is disabled |
4 | pF | ||
| Cpin |
Total capacitance between XL1 and XL2 pads when internal capacitor enabled |
6 | 7 | 9 | pF |
| VAMP,IN,XO,LOW |
Peak-to-peak amplitude for external low swing clock. Input signal must not swing outside supply rails. |
200 | 1000 | mV |