NXP Semiconductors
AN11744
PN5180 Evaluation board quick start guide
AN11744 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Application note Rev. 1.3 — 2 February 2018
COMPANY PUBLIC 371213 9 / 45
Figure 6. PNEV5180B 2.0 PN5180
The antenna connection uses the standard tuning circuit. The EMC filter is designed with
a cut off frequency of f
EMC
= 15 MHz, and the antenna impedance is tuned to Z ≈ 20Ω.
1. The matching components might be adapted due to antenna layout changes.
Figure 7. Antenna
Note: The antenna impedance tuning and measurement must be done with R = 10Ω
between ANT1 and ANT2.
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