Sine wave architecture enhances NFC reader performance

Austrian, fabless semiconductor company, Panthronics has extended its portfolio of NFC reader ICs with the PTX105R and the PTX130R reader. The pair give OEMs new options to design NFC capability into IoT devices, embedded and mobile computing systems, said the company. 

The PTX105R reader for IoT and consumer electronics devices is compatible with NFC Forum specifications. It offers accurate digital wave shaping to guarantee interoperability with all NFC-compliant cards, tags and NFC devices in wearable form factors, said Panthronics. 

The PTX105R produces RF output power of 1W at the antenna and high receive sensitivity of -80dBc for reliable connectivity in general electronics systems, said Panthronics. The PTX105R’s RF performance enables the implementation of designs based on a smaller antenna than that which is required by competing NFC readers, said the company. 

The second introduction is the PTX130R reader. This is an upgraded version of the PTX100R reader IC for point of sale (PoS) terminals. The PTX130R is the first reader IC by the company to feature native support for the Android operating environment. It provides a way to add NFC communications capability to embedded computing systems built around a touchscreen display. Suitable applications are PoS and mobile PoS terminals and can also provide NFC connectivity in embedded computing devices, such as scanners, automated service points such as self-check-in terminals at hotels, and secure access control and home and building automation equipment with a display-enabled human machine interface (HMI). 

The PTX130R features very high RF output power of more than 2W at the antenna, enabling OEMs to achieve compliance with the strict requirements of the EMVCo standard for payment card transactions even when operating via an antenna which is placed close to or behind a noisy display. 

The company’s sine wave silicon architecture is designed from the ground up for NFC systems and offers higher sensitivity, more accurate wave-shaping, higher output power and a simpler hardware implementation than conventional NFC reader ICs based on a square wave architecture, reported Panthronics. 

Panthronics readers also typically offer a read range 40 per cent higher than that provided by conventional readers based on a square wave architecture, added the company. 

Evaluation kits for the PTX105R and PTX130R are available directly from Panthronics. They provide a ready-made operating environment including the antenna, to enable design engineers to evaluate NFC performance out of the box. 

Panthronics also supplies an NFC connectivity board based on the PTX105R for the Renesas Quick-Connect IoT rapid system prototyping platform. The Panthronics NFC board provides a fast and easy way to build NFC connectivity into IoT systems based on the general purpose microcontrollers which support the modular Quick-Connect IoT format. The board feaures a Pmod connector and can be linked to the Renesas Quick-Connect microcontroller evaluation kits.

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