Datasheet

NXP Semiconductors
UM10935
PN7150 NFC Controller SBC Kit User Manual
UM10935
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© NXP Semiconductors N.V. 2016. All rights reserved.
User manual
COMPANY PUBLIC
Rev. 1.1 — 18 May 2016
348011
13 of 23
4. Additional information
4.1 Using different Antenna
The OM5578/PN7150S kit provide a flexible way of connecting an external RF antenna
to be used in place of the on-board one.
On the PN7150 NFC Controller Board, the dedicated 3 pins connector referenced as TB1
allows to connect your own antenna.
In this case the on-board antenna must be first disconnected, removing resistors R75
and R73.
Obviously matching circuitry must be adapted as described in related document
“AN11755 - PN7150 Antenna Design and Matching Guide”.
Fig 17. PN7150 NFC Controller Board RF Antenna components
Table 1. PN7150 NFC Controller Board TB1 connector pinout
TB1
PN7150 signal
#1
ANTENNA 1
#2
GND
#3
ANTENNA 2
TB1
R73 and R75
Matching circuitry