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ST25R3920B-AQWT +BOM

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

Produttore:

STMicroelectronics, Inc
ProduttorePart #:

ST25R3920B-AQWT
Scheda dati:

ST25R3920B-AQWT Scheda dati (PDF)
Series:

Automotive, AEC-Q100, ST25R
Type:

RFID Reader/Transponder
Frequency:

13.56MHz
Standards:

FeliCa, NFS

E-mail: [email protected]

Skype: live:.cid.ab6b29428937b76

tel: +852 95804164

ST25R3920B-AQWT Descrizione generale

The ST25R3920B is an automotive grade high performance NFC universal device supporting NFC initiator, NFC target, NFC reader and NFC card emulation modes.

Designed for CCC (car connectivity consortium) digital key applications, the ST25R3920B enables fast product development for car access/start applications in areas like door handle or center console, and enables additional functionality, like pairing or NFC card protection combined with a Qi charger. Being very robust and noise tolerant while at the same time reducing electromagnetic emission, the device works even under harsh conditions, enabling an easier certification.

The device includes an advanced analog front end (AFE) and a highly integrated data framing system for ISO18092 passive and active initiator, ISO 18092 passive and active target, NFC-A/B (ISO14443A/B) reader including higher bit rates, NFC-F (FeliCa ) reader, NFC-V (ISO15693) reader up to 53 kbps, and NFC-A / NFC-F card emulation.

Special stream and transparent modes of the AFE and framing system is used to implement other custom protocols in reader or card emulation modes.

The ST25R3920B 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 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).

Due to this combination of high RF output power, low power modes, wide supply range and AEC-Q100 grade 2 qualification the device is perfectly suited for automotive applications.

Caratteristiche principali

AEC-Q100 qualified
Operating modes
Reader/writer
Card emulation
Active and passive peer to peer
Reader/writer
Card emulation
Active and passive peer to peer
RF communication
EMVCo 3.1a analog and digital compliant
NFC-A / ISO14443A up to 848 kbit/s
NFC-B / ISO14443B up to 848 kbit/s
NFC-F / FeliCa up to 424 kbit/s
NFC-V / ISO15693 up to 53 kb/s
NFC-A / ISO14443A (106 kbit/s) and NFC-F / FeliCa (212/424 kbit/s) card emulation
Active and passive peer to peer initiator and target modes, up to 424 kbit/s
Low level modes to implement MIFARE Classic compliant or other custom protocols
EMVCo 3.1a analog and digital compliant
NFC-A / ISO14443A up to 848 kbit/s
NFC-B / ISO14443B up to 848 kbit/s
NFC-F / FeliCa up to 424 kbit/s
NFC-V / ISO15693 up to 53 kb/s
NFC-A / ISO14443A (106 kbit/s) and NFC-F / FeliCa (212/424 kbit/s) card emulation
Active and passive peer to peer initiator and target modes, up to 424 kbit/s
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 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
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
External communication interfaces
512-byte FIFO
Serial peripheral interface (SPI) up to 5 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
512-byte FIFO
Serial peripheral interface (SPI) up to 5 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 +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C)
Wide peripheral communication supply range, from 1.65 to 5.5 V
Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up
Wide supply voltage and ambient temperature 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)
Wide peripheral communication supply range, from 1.65 to 5.5 V
Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up

Specifiche

Category	RF and WirelessRFID, RF Access, Monitoring ICs	Series	Automotive, AEC-Q100, ST25R
Type	RFID Reader/Transponder	Frequency	13.56MHz
Standards	FeliCa, NFS	Interface	I²C, SPI
Voltage - Supply	2.6V ~ 5.5V	Operating Temperature	-40°C ~ 105°C
Mounting Type	Surface Mount, Wettable Flank	Base Product Number	ST25

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