This 32768Hz crystal oscillator IP with embedded analog IOs has an embedded low power LDO and it ... There is no temperature calibration scheme in the circuit.

The sole power supply is 3.3V, but it can be as low as 1.6V while the oscillator can still function properly. The oscillator works in parallel resonant mode of the crystal. When a 32768Hz quartz ...

His recent video shows a crystal oscillator with a “watch crystal” and a CMOS counter, the CD4060. Using such a circuit can produce very stable frequencies and since the 32.768 kHz crystal is ...