The main features of the new AS3911B are:
Excellent read range thanks to its powerful transmitter and automatic antenna tuning;
Very low power consumption due to its inductive and capacitive proximity sensors;
Support for RFID protocols ISO 14443 A & B and ISO 15693, including Mifare™, FeliCa™, and Cipurse™;
Support for NFC protocols ISO 18092 (NFCIP-1), Active P2P initiator & target, and Passive P2P initiator;
EMV certification for wireless payments and service authentication;
Highest speeds available on the market with VHBR up to 6.8 Mbit/s
The AS3911B can maintain proximity detection for an RFID or NFC card while consuming only 5µA.
It features a 1W emitter with precise modulation depth control and offers a transparent mode for externally enabling the execution of protocols not implemented internally.
The AS3911B includes all the necessary hardware and logic for RFID/NFC reader implementation, including an antenna tuning measurement system that greatly simplifies hardware development. It is available in QFN32, WL-CSP miniature, and COB cut wafer packages.
The AS3911B is the industrial version of the successful AS3914, which is certified for automotive use and has just been selected by Marquardt (a leading global manufacturer of automotive devices) to equip its new door lock with an integrated NFC reader.
Marquardt is also integrating the AS3914 into NFC readers built into car center consoles or dashboards.
Both the door and dashboard readers can be paired via proximity to any NFC device, such as a card, mobile phone, smartwatch, or tablet.
This wireless NFC pairing validates the user's identity, unlocking access to the car and engine operation, and enables wireless connectivity to applications running on the paired device. This concept will be used in the next generation of mid-range and high-end cars manufactured in Europe.
