Overview
Description
The PTX130W is a powerful and efficient NFC transmitter system-on-chip for NFC wireless charging applications alongside data communication. PTX130W features improved key performance parameters such as output power and RX sensitivity (-80dBc ). While eliminating EMC filter and matching components the PTX130W enables simple integration and compact design without the complexity associated with existing solutions (dual resonating circuits composed by EMC filter and antenna). The superior RF performance of PTX130W enables small antenna design, fast charging and allows flexible placement of Poller and Listener antennas.
Features
- Allows harvesting up to 1W on the NFC WLC Listener
- No EMC filter requirement due to sinewave output driver and Direct Antenna Connection (DiRAC)
- Automated Power Control Loop for system efficiency optimization
- Output power regulation with 1% step
- NFC Forum WLC Poller functionalities
- NFC Data exchange with
- Impedance change detection for FOD
- On-Chip processing of time critical commands
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Support
Support Communities
Support Communities
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NFC PTX130W&PTX30W Document and SDK Request Access
Our research group purchased some 1.0 versions of the PTX30W and PTX130W before Panthronic was acquired by Renesas, and we recently purchased new versions of the PTX30W&PTX130W on mouser. However, on the website of Renesas, I need to apply for access to this part of data. Up ...
Sep 17, 2024 -
Question about PTX30W and PTX130W documentation
Hi, I want to download the PTX30W and PTX130W documents. Although I have "Request Access" but have not received any response?
Dec 27, 2024 -
No response on PTX130W MISO
Hi there, I've incorporated the PTX130W onto a custom board and I've been trying to get SPI working properly. My SPI connection is going directly from the MCU to the PTX130W (not a shared bus). I've been trying to confirm SPI functionality using the smoke test highlighted ...
Jul 19, 2025
FAQs
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I2C communication with NFC device fails
It is recommended to run a smoke-test to ensure that the I2C interface is working without actually using the SDK code itself. For that purpose following Python code examples can be either used directly, or re-implemented for the target system. Get yourself familiar with I2C first (refer to ...
Oct 11, 2024 -
Communication via SPI interface fails (no MISO response)
It is recommended to run a smoke-test to ensure that the SPI interface is working without actually using the SDK code itself. For that purpose following Python code examples can be either used directly, or re-implemented for the target system. Get yourself familiar with SPI first (refer to ...
Oct 11, 2024
News & Blog Posts
Blog Post
Jul 25, 2024
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