TMD2725 Datasheet, PDF (15/50 Pages) ams AG – The device features advanced proximity measurement

TMD2725 − Principles of Operation
Figure 19:
Simplified State Diagram
Oscillator Off
(SLEEP)
CNTRL Typical Flow
rev 1v0, 24.08.2016
Az_nth_iteration is assumed 0x7f – Run
Autozero once before 1st ALS integration
This makes the flow chart simpler, and this is the
more usual case
no
pon=1
yes
Oscillator On
(IDLE)
aen=0 & pen=0
yes
no
no
start-offset-calib
aen=1
no
yes
no
1st ALS iteration
yes
Run Autozero
Calibration
Run Proximity
Offset Calibration
yes
yes
no
aen=1 & pen=x
aen=0
aborts ALS
Run ALS
Integration
pen=1
no
yes
Run Proximity
Integration
no
yes
aen=0 & pen=1
wen=1
wen=0 | (aen=0 & pen=0)
aborts WTIME timer
yes
Run WTIME timer
ams Datasheet
[v1-11] 2016-Sep-20
Page 15
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