IC-ME Datasheet, PDF (10/11 Pages) IC-Haus GmbH – DUAL LIGHT-GRID PULSE RECEIVER

iC-ME
DUAL LIGHT-GRID PULSE RECEIVER
preliminary
Rev A1, Page 10/11
Light curtain PCB layout
The PCB layout for light curtain receivers is not critical.
The photodiode anode should be directly connected to
iC-ME’s GND pin so that voltage drop caused by the
chip’s operating current is not coupled into the pho-
tocurrent signal.
As the power consumption is relatively small, only low-
level back-up capacitors are required (typ. 1 µF elec-
trolytic capacitor in parallel to 47 to 100 nF ceramic ca-
pacitor). The ceramic capacitors should be placed at
a 7.5 cm distance, electrolytic capacitors at up to twice
this distance. The number of receivers backed up as a
group in this manner is irrelevant as only one device is
activated drawing current at a time.
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