MLX75031 Datasheet, PDF (60/67 Pages) Melexis Microelectronic Systems – Optical Gesture & Proximity Sensing IC

MLX75031
Optical Gesture & Proximity Sensing IC
with Integrated LED Drivers
Datasheet
8.17. Wake-up from Sleep or Standby
The figure below shows what happens when switching operation mode, and the behaviour of the DR pin,
the SLEEPB pin and the watchdog timer.
When a NRM command is uploaded during Sleep or Standby, the following will happen:
- the DR pin goes low for a time t_{wakeup_stby} or t_{wakeup_slp}
- the watchdog timer is initialised and starts counting, when waking up from Sleep
- the device changes to Normal Running Mode, enabling the appropriate blocks
- the SLEEPB pin goes high
Figure 19 : Behaviour of DR and Watchdog when switching mode
REVISION 001 – JANUARY, 2013
39010xxxxx
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