WIDE APPLICATION: The new NFC readers make it easier to ensure products conform to EMVCo 3.1a and NFC Forum CR13 specifications

PARTNER NEWS: STMicroelectronics has launched two new NFC Forum reader devices that enable developers and manufacturers to support NFC initiator, target, reader and card emulation modes and make it easier to ensure products conform to EMVCo 3.1a and NFC Forum CR13 specifications.

The ST25R3916B-AQWT and the ST25R3917B-AQWT “combine high output power and energy efficiency at a competitive price” and can be used across a wide range of industrial and consumer applications, including contactless payment, device pairing, wireless charging and brand protection.

“The ST25R3916B and the ST25R3917B deliver up to 1.6W RF output power and can drive antennas directly at high efficiency. Dynamic power-output (DPO) adjustment enables designers to keep the radiated power between the upper and lower limits defined by EMVCo and the NFC Forum specifications,” ST says.

Full details are in the press release below:

STMicroelectronics’ newest NFC readers accelerate payment and consumer application designs

GENEVA, 8 June 2022: STMicroelectronics’ ST25R3916B-AQWT and ST25R3917B-AQWT NFC Forum Reader devices combine high output power and energy efficiency at a competitive price. Supporting NFC initiator, target, reader and card-emulation modes, they can be used in contactless payment, device pairing, wireless charging, brand protection, and other industrial and consumer applications.

The new devices introduce improved active wave shaping (AWS) with increased flexibility that simplifies adjustment of the RF output to optimise overshoot and undershoot. The setup can be done easily by register settings supported by a graphical tool and quickly validated with an oscilloscope. This eases certification according to EMVCo 3.1a and NFC Forum CR13 specifications without the need to touch the matching of the antenna.

The ST25R3916B and the ST25R3917B deliver up to 1.6W RF output power and can drive antennas directly at high efficiency. Dynamic power-output (DPO) adjustment enables designers to keep the radiated power between the upper and lower limits defined by EMVCo and the NFC Forum specifications.

Combining a highly noise-resistant input structure and ST’s proprietary noise-suppression receivers (NSR), the ST25R3916B/17B have high immunity to interference from other nearby equipment such as power supplies and POS terminals. Both devices offer a high level of resistance to both radiated noise and conducted noise.

The ST25R3916B/17B ICs offer a wide power-supply voltage range, from as low as 2.4V to 5.5V and operating temperatures from -40°C to 105°C. The peripheral I/O circuitry can operate from as little as 1.65V.

Free samples of the ST25R3916B-AQWT and the ST25R3917B-AQWT are available now on ST eStore in 32-lead VFQFPN 5mmx5mmx1mm package and 36-bump wafer-level chip-scale package (WLCSP) options.

For more information, please go to www.st.com/st25r3916b

ST eases payment and consumer application design with new NFC readers was written by Tom Phillips and published by NFCW.

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