PN7462
NXP Semiconductors
Normally the transmitter (TX) of the PN7462 is automatically controlled by the firmware.
Application NoteNxp
AN14138 PN7642 Design-In Recommendations
Guidelines for designing NFC systems with NXP PN7642, covering DPC 2.0 calibration, power management, TX/RX optimization, and NFC Cockpit configuration.
Overview
This application note provides technical recommendations for implementing the NXP PN7642 NFC reader frontend. It focuses on the Dynamic Power Control (DPC 2.0) architecture, which utilizes an integrated DC-DC boost converter and TXLDO to optimize power delivery and transmitter performance. The document outlines essential calibration procedures, including current reduction LUT configuration, antenna tuning, and the adjustment of Adaptive Waveform Control (AWC) and Adaptive Receiver Control (ARC) settings. It details how to use the NFC Cockpit software tool for analog optimization and EEPROM management without direct firmware coding, ensuring compliance with ISO and NFC standards across various antenna designs.
Use Cases
- NFC reader hardware design
- Contactless payment terminal development
- Secure access control systems
- NFC antenna calibration and optimization
- Battery-powered NFC device power management
Topics
PN7642
NFC
DPC 2.0
NFC Cockpit
AWC
ARC
DC-DC Converter
TXLDO
Antenna Tuning
Transmitter Shaping
Referenced Parts
PN7642
NXP Semiconductors
The overall concept of the PN7642 is based on powerful and flexible NFC frontend hardware, which is controlled by the internal open μC and its firmware.
| PN7462 | NXP Semiconductors | Normally the transmitter (TX) of the PN7462 is automatically controlled by the firmware. |
| PN7642 | NXP Semiconductors | The overall concept of the PN7642 is based on powerful and flexible NFC frontend hardware, which is controlled by the internal open μC and its firmware. |