New devices introduce improved active wave shaping (AWS) with increased flexibility that simplifies adjustment of the RF output
STMicroelectronics’ ST25R3916B-AQWT and ST25R3917B-AQWT NFC Forum Reader devices combine high output power and energy efficiency at what the company says is 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 optimize 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 ST25R3917B-AQWT are available now on ST eStore in 32-lead VFQFPN 5mm x 5mm x 1mm package and 36-bump wafer-level chip-scale package (WLCSP) options.
Related Articles
Mesh network buildings automation platform supports up to 100 battery-powered wireless nodes per gateway
Low latency highly flexible modular mesh network platform is said to eliminate need for hard wiring and signal-boosting wireless repeaters Finnish building automation specialist Produal, has developed what it describes as an advanced yet flexible and easy-to-install...
Wireless security camera uses the new WiFi HaLow
New Wi-Fi standard gives security cameras a range over 1000 ft and 1-year battery lifeScenestek is a Smart Home startup that is using a new Wi-Fi standard which gives its security cameras a range over 1000 ft and 1-year battery life. According to Scenestek, the new...
Bluetooth 5.2 personnel tracking solutions help companies monitor employee social distancing
Tracker employs Nordic’s nRF52833 SoC enabling wireless proximity detection and contact tracing Laird Connectivity, an Akron, Ohio-based wireless technology company, has selected Nordic Semiconductor’s nRF52833 Bluetooth Low Energy (Bluetooth LE)/Bluetooth 5.2...
Stay Up to Date With The Latest News & Updates
Our Sponsors
Incisor.TV partners with leading organisations in the technology sector.
Follow Us
And stay up to date with our news! We are active across the key social media platforms – please do follow us!
0 Comments