HID Global Corporation 5553 Manuale Utente
1508-USM-00-0-04
HF Multi ISO RFID Reader User Manual, Firmware V1.4
The board can be connected as shown in Figure 3 - Power Supply Option 2. 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.
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.
3
4
4
OEM Board
+5V DC
Figure 3 - Power Supply Option 2
1.4.2 Antenna
The typical antenna tuning and matching network is shown in Figure 4 - Typical Antenna Tuning.
The external antenna has to have the right inductance and a certain resistor and capacitor
combination for an optimized frequency tuning and antenna matching.
The external antenna has to have the right inductance and a certain resistor and capacitor
combination for an optimized frequency tuning and antenna matching.
6
5
1
2
2
OEM Board
C1
C2
C3
C4
C5
L ANT
R1
Figure 4 - Typical Antenna Tuning
More details about the antenna design are available in the HID Antenna Design guide. Download
this document from
this document from
http://www.hidglobal.com/Omnikey
.
Reference the specific application notes for the NXP reader IC (MIFARE & I-Code, Micore Reader
IC family Directly Matched Antenna Design).
IC family Directly Matched Antenna Design).
Page 16 of 144
August 2010
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