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ST25R3911B-AQFT
High performance HF reader / NFC initiator with 1.4 W supporting VHBR and AAT
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Produttore:
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ProduttorePart #:
ST25R3911B-AQFT
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Scheda dati:
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Series:
ST25R
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Type:
RFID Reader
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Frequency:
13.56MHz
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Standards:
ISO 14443, NFC
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EDA/CAD Modelli:
Disponibilità: 6247 PZ
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ST25R3911B-AQFT Descrizione generale
The ST25R3911B is a highly integrated NFC Initiator / HF reader IC, including the analog front end (AFE) and a highly integrated data framing system for ISO 18092 (NFCIP-1) initiator, ISO 18092 (NFCIP-1) active target, ISO 14443A and B reader (including high bit rates), ISO 15693 reader and FeliCa™ reader. Implementation of other standard and custom protocols like MIFARE™ Classic is possible using the AFE and implementing framing in the external microcontroller (Stream and Transparent modes).The ST25R3911B is positioned perfectly for the infrastructure side of the NFC system, where users need optimal RF performance and flexibility combined with low power.Thanks to automatic antenna tuning (AAT) technology, the device is optimized for applications with directly driven antennas. The ST25R3911B is alone in the domain of HF reader ICs as it contains two differential low impedance (1 Ohm) antenna drivers.The ST25R3911B includes several features that make it very suited for low power applications. It contains a low power capacitive sensor that can be used to detect the presence of a card without switching on the reader field. The presence of a card can also be detected by performing a measurement of amplitude or phase of signal on antenna LC tank, and comparing it to the stored reference. It also contains a low power RC oscillator and wake-up timer that can be used to wake up the system after a defined time period, and to check for the presence of a tag using one or more low power detection techniques (capacitive, phase or amplitude).The ST25R3911B is designed to operate from a wide (2.4 V to 5.5 V) power supply range; peripheral interface IO pins support power supply range from 1.65 V to 5.5 V.Discovery kit for the ST25R3911B high performanc.NFC card reader expansion board based on ST25R39.
Caratteristiche principali
- ISO 18092 (NFCIP-1) Active P2P
- ISO14443A, ISO14443B, ISO15693 and FeliCa™
- Supports VHBR (3.4 Mbit/s PICC to PCD framing, 6.8 Mbit/s AFE and PCD to PICC framing)
- Capacitive sensing - Wake-up
- Automatic antenna tuning system providing tuning of antenna LC tank
- Automatic modulation index adjustment
- AM and PM demodulator channels with automatic selection
- DPO (Dynamic power output)
- Up to 1.4 W in case of differential output
- User selectable and automatic gain control
- Transparent and stream modes to implement MIFARE™ classic compliant or other custom protocols
- Possibility of driving two antennas in single ended mode
- Oscillator input capable of operating with 13.56 MHz or 27.12 MHz crystal with fast start-up
- 6 Mbit/s SPI with 96 bytes FIFO
- Wide supply voltage range from 2.4 V to 5.5 V
- Wide temperature range: -40 °C to 125 °C
- QFN32, 5x5 mm package with wetable flank or wafer delivery
Specifiche
Category | RF and WirelessRFID, RF Access, Monitoring ICs | Series | ST25R |
Type | RFID Reader | Frequency | 13.56MHz |
Standards | ISO 14443, NFC | Interface | SPI |
Voltage - Supply | 2.4V ~ 5.5V | Operating Temperature | -40°C ~ 125°C |
Mounting Type | Surface Mount | Base Product Number | ST25 |
feature-packaging | Tape and Reel | feature-pin-count | 32 |
feature-cecc-qualified | feature-esd-protection | ||
feature-military | No | feature-aec-qualified | No |
feature-aec-qualified-number | feature-auto-motive | No | |
feature-p-pap | No | feature-eccn-code | EAR99 |
feature-svhc | Yes | feature-svhc-exceeds-threshold | No |
Politiche di servizio e altro
Relativi al servizio post-vendita e alla liquidazione
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Prodotto 365 giorni
Qualità garantita
Promettiamo di fornire un servizio di garanzia della qualità di 365 giorni per tutti i nostri prodotti.
Disponibilità: 6247 PCS
+BOMQtà. | Prezzo unitario | Est. Prezzo |
---|---|---|
1+ | $1,751 | $1,75 |
10+ | $1,515 | $15,15 |
30+ | $1,370 | $41,10 |
100+ | $1,220 | $122,00 |
500+ | $1,151 | $575,50 |
1000+ | $1,121 | $1.121,00 |
I prezzi sottostanti sono solo di riferimento.
Tutte le distinte materiali (BOM) possono essere inviate via e-mail a [email protected], oppure compila il modulo sottostante per effettuare un preventivo per ST25R3911B-AQFT, preventivi garantiti entro 12 ore.
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This product is suitable for a range of applications requiring RFID and NFC functionality
Corresponds to the description, after the introduction i will describe in the work.