User's Manual

HF Mifare Easy Module V1.0
ACG Identification Technologies GmbH 21
6.1.3 External Connections
6.1.3.1 Power Supply
If the supply voltage and any noise modulated on the supply voltage remains within
the specified limits, no further filtering is required. In some cases it is recommended
to use additional filtering for the power supply line. Insuficcient power line filtering
could cause unexpected or irregular performance drops.
Option 1
uC
20
19
OEM Board
+5V DC
Option 2
3
4
OEM Board
+5V DC
The board can be connected as shown above. Both alternatives are possible and can
be used as they fit best into the layout of the carrier board. The two VCC PINs and
the two GND PINs are connected internally.