ST25R3920B-AQWT Automotive high performance NFC reader for CCC digital key and car center console

Description of ST25R3920B-AQWT
The ST25R3920B-AQWT is an automotive grade high performance NFC universal device supporting NFC initiator, NFC target, NFC reader and NFC card emulation modes.
The ST25R3920B-AQWT features high RF power with dynamic power output to directly drive antennas at high efficiency, achieving large interaction distance even with small antenna sizes common in door handles. The device include additional features, making it incomparable for low power applications. It offers low power card detection by performing a measurement of the amplitude or phase of the antenna signal while reducing power consumption to a minimum.
The ST25R3920B-AQWT is designed to operate from a wide power supply range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C), and a wide peripheral IO voltage range (from 1.65 to 5.5 V).

Specification of ST25R3920B-AQWT

Key features of ST25R3920B-AQWT

• Dynamic power output (DPO) controls the field strength to stay within given limits
• Active wave shaping (AWS) reduces over-and under-shoots
• Noise suppression receiver (NSR) allows reception in noisy environment
• Automatic antenna tuning (AAT) via variable capacitor
• Integrated EMVCo® 3.1a compliant EMD handling
• Automatic gain control and squelch feature to maximize SNR
• Low power NFC active and passive target modes
• Adjustable ASK modulation depth, from 0 to 82%
• Integrated regulators to boost system PSRR
• AM/PM and I/Q demodulator with baseband channel summation or automatic channel selection
• Possibility to drive two independent single ended antennas
• Measurement of antenna voltage amplitude and phase, RSSI, on-chip supply and regulated voltages

System diagram of ST25R3920B-AQWT

FAQ
Q. Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q:Which Certificates do you have?
A:We are ISO 9001:2015 Certified Company and member of ERAI.
Q:Can you support small quantity order or sample?Is the sample free?
A:Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q:How to ship my order? Is it safe?
A:We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q:What about the lead time?
A:We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.