NXP Semiconductors OM5577 User manual

UM10878
PN7120 NFC controller SBC kit user manual
Rev. 1.5 — 9 February 2021 User manual
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Keywords OM5577, PN7120, demo kit, Raspberry Pi, BeagleBone
Abstract This document is the user manual of the PN7120 NFC controller SBC kit.

NXP Semiconductors UM10878
PN7120 NFC controller SBC kit user manual
1 Revision history
Rev Date Description
1.5 20210209 Removed Windows IoT support
1.4 20170104 Added CE certification details
1.3 20160707 Added demo kit performance details
1.2 20160503 FCC statement updated
1.1 20151007 •FCC statement added
•Note about useless of some components on the schematics added
•Section Legal information updated
1.0 20150519 First release
Revision history
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PN7120 NFC controller SBC kit user manual
2 Introduction
The present document describes the OM5577/PN7120S demonstration kit, a flexible and
easy-to-use Single Board Computer (SBC) Kit for the PN7120 NFC controller.
It contains a PN7120 NFC controller board, a Raspberry Pi interface board, a
BeagleBone interface board, as well as an NFC Forum Type 2 Tag in a form of a MIFARE
Ultralight card. It enables the development of an NFC solution based on PN7120 in a
Linux or Android environment.
In this document, the term „MIFARE Ultralight card“ refers to a MIFARE Ultralight IC-
based contactless card.
PN7120 is a full NFC controller solution with integrated firmware and NCI interface
designed for contactless communication at 13.56 MHz.
This document presents first an overview of the kit.
Then, it gives printed circuit boards details.
Finally, it provides information for reuse of the kit in different environments.
This kit is registered as FCC certified module (FCC ID: OWROM5577-PN7120S).
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PN7120 NFC controller SBC kit user manual
3 Overview
3.1 Kit description
OM5577/PN7120S kit is a high performance fully NFC-compliant expansion board for
both Raspberry Pi (refer to [1] for more details) and BeagleBone (refer to [2] for more
details). It meets compliance with reader mode, P2P mode and Card emulation mode
standards. The board features an integrated high performance RF antenna to insure high
interoperability level with NFC devices.
3.2 Kit content
The kit is composed of 3 printed circuit boards and a MIFARE Ultralight EV1 card.
Figure 1. PN7120NFC controller SBC kit content
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PN7120 NFC controller SBC kit user manual
3.2.1 PN7120 NFC controller board
The PN7120 NFC controller board is the main board of the demonstration kit. It embeds
the PN7120 and all related circuitry.
It also includes an onboard RF antenna with related matching circuitry.
This main board has to be used in association with one of the 2 interface boards
depending on the target user environment (Raspberry Pi or BeagleBone).
For this purpose, it integrates dedicated connectors allowing boards assembly.
Figure 2. PN7120 NFC Controller Board
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PN7120 NFC controller SBC kit user manual
3.2.2 BeagleBone interface board
The BeagleBone interface board offers support for connection to BeagleBone board
(refer to [2] for more details).
As such it integrates the connectors allowing the PN7120 NFC controller board to be
plugged on it, as well as connectors to be assembled on top of the BeagleBone board.
Figure 3. BeagleBone interface board
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PN7120 NFC controller SBC kit user manual
3.2.3 Raspberry Pi interface board
The Raspberry Pi interface board offers support for connection to Raspberry Pi board
(refer to [1] for more details).
As such it integrates the connectors allowing the PN7120 NFC controller board to be
plugged on it, as well as connector to be assembled on top of the Raspberry Pi board.
Figure 4. Raspberry Pi Interface Board
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PN7120 NFC controller SBC kit user manual
3.2.4 MIFARE Ultralight EV1 card
OM5577/PN7120S kit includes a MIFARE Ultralight EV1 card allowing to demonstrate
NFC reader capabilities of PN7120 NFC controller.
MIFARE Ultralight EV1 is the next generation of paper ticketing smart card IC for limited-
use applications. It offers solution developers and operators the maximum flexibility for
their ticketing schemes and additional security options.
For the current purpose of PN7120 NFC Controller demonstration, the card has been set
as NFC Forum Type 2 Tag, and pre-configured with NDEF URI type message “https://
www.nxp.com/products/rfid-nfc/nfc-hf/nfc-readers/development-kits-for-pn7120-plugn-
play-nfc-controller:OM5577”.
Figure 5. MIFARE Ultralight EV1 card
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PN7120 NFC controller SBC kit user manual
4 Details
4.1 PN7120 NFC controller board
4.1.1 Schematics
Notes: - C8 capacitor (on PN7120 pin D7) has been identified useless
- R53/R54 resistors have been identified useless
Figure 6. PN7120 NFC controller board schematics
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PN7120 NFC controller SBC kit user manual
4.1.2 Layout
4.1.2.1 Components layers
Figure 7. PN7120 NFC controller board top components layers
Figure 8. PN7120 NFC controller board bottom components layers
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PN7120 NFC controller SBC kit user manual
4.1.2.2 Layer 1
Figure 9. PN7120 NFC controller board layer 1
4.1.2.3 Layer 2
Figure 10. PN7120 NFC controller board layer 2
4.1.2.4 Top silkscreen layer
Figure 11. PN7120 NFC controller board top silkscreen layer
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4.2 BeagleBone interface board
4.2.1 Schematics
Figure 12. BeagleBone Interface Board schematics
4.2.2 Layout
4.2.2.1 Components layers
Figure 13. BeagleBone interface board top components layers
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PN7120 NFC controller SBC kit user manual
Figure 14. BeagleBone interface board bottom components layers
4.2.2.2 Layers 1 and 2
Figure 15. BeagleBone interface board layers 1 and 2
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PN7120 NFC controller SBC kit user manual
4.2.2.3 Layer 3
Figure 16. BeagleBone interface board layer 3
4.2.2.4 Layer 4
Figure 17. BeagleBone interface board layer 4
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4.2.2.5 Top silkscreen layer
Figure 18. BeagleBone interface board top silkscreen layer
4.3 Raspberry Pi interface board
4.3.1 Schematics
Figure 19. Raspberry Pi interface board schematics
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4.3.2 Layout
4.3.2.1 Components layers
Figure 20. Raspberry Pi interface board top components layers
Figure 21. Raspberry Pi Interface board bottom components layers
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4.3.2.2 Layers 1 and 2
Figure 22. Raspberry Pi interface board layers 1 and 2
4.3.2.3 Layer 3
Figure 23. Raspberry Pi interface board layer 3
4.3.2.4 Layer 4
Figure 24. Raspberry Pi interface board layer 4
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4.3.2.5 Top silkscreen layer
Figure 25. Raspberry Pi interface board top silkscreen layer
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5 PN7120 NFC controller board performances
Following RF performance results are obtained running the demo kit:
Measured with EMVCo reference PICC
@ 0 cm @ 1 cm @ 2 cm @ 3 cm
7.6 V 6.7 V 4.3 V 1.2 V
Table 1. Power transfer (Poll mode)
Card type Communication distance (mm)
ISO 15693 UPM RaceTrack 120
NFC Sample Card (NTAG216 – ID1) 80
NFC Sticker (NTAG216 – 40x40) 68
Topaz (35mm Round) 55
Type B (ID1) 45
FeliCa (ID1) 36
Table 2. Reader/Writer mode performance
Vs Samsung Galaxy S7 phone
Communication distance
moving phone from far to close moving phone from close to far
50 65
Table 3. Peer to Peer mode performances
Vs NXP Pegoda Reader
Communication distance (mm)
180
Table 4. Card mode performance
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6 Additional information
6.1 Using different antenna
The OM5577/PN7120S kit provides a flexible way of connecting an external RF antenna
to be used in place of the onboard one.
On the PN7120 NFC controller board, the dedicated 3 pins connector referenced as TB1
allows connecting your own antenna.
In this case, the onboard antenna must be first disconnected, removing resistors R75 and
R73.
Obviously matching circuitry must be adapted as described in related document
“AN11564 - PN7120 antenna and tuning design guide” (can be downloaded from PN7120
product web page [3]).
Figure 26. PN7120 NFC controller board RF antenna components
TB1 PN7120 signal
#1 ANTENNA 1
#2 GND
#3 ANTENNA 2
Table 5. PN7120 NFC controller board TB1 connector pinout
6.2 Using in another system
The OM5577/PN7120S demonstration kit can be reuse in another system than
Raspberry Pi or BeagleBone.
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