company blog about New and Original [ST] Card Reader ST25R3917-AQWT High Performance NFC General Purpose Device

Shenzhen Mingjiada Electronics Co., Ltd New and Original [ST] Card Reader ST25R3917-AQWT High performance NFC general purpose device supports NFC Initiator, NFC Acceptor, NFC Reader, and NFC Card Emulation Mode (when applicable).

Description:

Fully compliant with EMVCo 3.0 analogue and digital standards, this NFC IC is optimised for POS terminal applications, enabling the fastest EMVCo 3.0 certification cycle even under harsh conditions with antennas around noisy LCD displays.

The device includes an advanced analogue front end (AFE) and highly integrated data framing system for ISO 18092 passive and active initiators, ISO 18092 passive and active targets, NFC-A/B (ISO 14443A/B) readers (including higher bit rates), NFC-F (FeliCa™) readers, NFC-V (ISO 15693) readers (including higher bit rates), and NFC-V (ISO 15693) readers. 15693) readers (up to 53 kbps) and NFC-A / NFC-F card emulation.

Special streaming and transparent modes of the AFE and framing system can be used to implement other custom protocols in reader or card emulation mode.

Key Features

Dynamic Power Output (DPO) controls the magnetic field strength to stay within given limits

Active Waveform Pulse (AWS) reduces overshoot and undershoot

Noise Suppression Receiver (NSR) supports reception in noisy environments

Automatic antenna tuning (AAT) with variable capacitors

Integrated EMVCo 3.0-compliant EMD processing capability

Automatic gain control and squelch characteristics to maximise SNR

Low power capacitive and inductive card detection

Low-power NFC active and passive target modes

Adjustable ASK modulation depth from 5 to 40 per cent

Integrated voltage regulator for enhanced system PSRR

AM/PM and I/Q demodulator with baseband channel summing or automatic channel selection

Can drive two independent single-ended antennas

Measures antenna voltage amplitude and phase, RSSI, on-chip power supply and regulator voltage

Part Number: ST25R3917-AQWT

Type: RFID Reader/Transponder

Frequency: 13.56MHz

Standard: FeliCa, ISO 14443, ISO 15693, MIFARE, NFC

Interface: SPI

Voltage - Supply: 2.4V ~ 5.5V

Operating Temperature: -40°C ~ 105°C (TA)

Mounting Type: Surface Mount

Package/Shell: 32-VFQFN Exposed Pad

Supplier Device Package: 32-VFQFPN (5x5)

If you are interested, please contact Mr Chen by phone:

Tel: +86 13410018555

Email: sales@hkmjd.com

Home URL: www.hkmjd.com