ST25R3918

ST25R3918 Multi-purpose NFC transceiver VFQFPN32 (5x5 mm) UFQFPN32 (5x5 mm) Features Operating modes – Reader/writer – Card emulation – Passive peer to peer RF communication – NFC-A / ISO14443A up to 848 kbit/s – NFC-B / ISO14443B up to 848 kbit/s – NFC-V / ISO15693 up to 53 kb/s – NFC-A / ISO14443A and NFC-F / FeliCa™ card emulation – Low level modes to implement MIFARE Classic® compliant or other custom protocols Key features – Dynamic power output (DPO) controls the field strength to stay within given limits – Active wave shaping (AWS) reduces overand under-shoots – Noise suppression receiver (NSR) allows reception in noisy environment – Automatic gain control and squelch feature to maximize SNR – Low power capacitive and inductive card detection – Low power NFC passive target modes – Adjustable ASK modulation depth, from 5 to 40% Datasheet - production data – 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 External communication interfaces – 512-byte FIFO – Serial peripheral interface (SPI) up to 10 Mbit/s – I2C with up to 400 kbit/s in Fast-mode, 1 Mbit/s in Fast-mode Plus, and 3.4 Mbit/s in High-speed mode Electrical characteristics – Wide supply voltage and ambient temperature range (2.6 to 5.5 V from -40 °C to +1...