Information

NXP Semiconductors
AN11022
CLRC663 Quickstart Guide
3.7.3 PCB antenna section
Refer to section 0
Fig 16. PCB antenna section
The matching circuit and the antenna with damping resistor part of the RC663 board can
be separated by cutting the board along the white dashed line on the top side of the
board. This line is shown in black in Fig 16
. The EMC filter is left on the board. After
cutting the antenna and matching circuit the receiver resistor, for the voltage divider, R12
and R13 (these resistors are also on the antenna and matching side) can be replaced by
using R17 and R20. Both resistors are not assembled, they are only for the case that the
antenna section is cut from the reader part.
EMC Filter
Matching
circuit
D
amping
resistors
Receiver RxN
Receiver RxP
AN11022 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2015. All rights reserved.
Application note
COMPANY PUBLIC
Rev. 1.2 — 14 January 2015
205912
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