AN3433

Power consumption considerations

Doc ID 019046 Rev 2

17/34

Figure 2.

Transition from Ready to Hibernate state

1.

In the above figure, yellow represents the 27.12-MHz (HFO) oscillator and the SPI_SCK signal is in green.

Figure 3 shows the device waking up from Hibernate state when pin IRQ_IN (green) goes

low. When the device returns to Ready state, the HF oscillator (yellow) restarts analog

resources.

Figure 3.

Wakeup from Hibernate state

0x07 0E 08 04 00 04 00 18 00 00 00 00 00 00 00 00