TRF7970ARHBR Introduction
1.1 Features 1
• Supports Near Field Communication (NFC)
• Programmable I/O Voltage Levels From Standards NFCIP-1 (ISO/IEC 18092) and 1.8 VDC to 5.5 VDC NFCIP-2 (ISO/IEC 21481)
• Programmable System Clock Frequency
• Completely Integrated Protocol Handling for Output (RF, RF/2, RF/4) from 13.56-MHz or ISO15693, ISO18000-3, ISO14443A/B, and 27.12-MHz Crystal or Oscillator FeliCa
• Integrated Voltage Regulator Output for Other
• Integrated Encoders, Decoders, and Data System Components (MCU, Peripherals,
Framing for NFC Initiator, Active and Passive Indicators, etc.), 20 mA (Max)
Target Operation for all three bit rates (106
• Programmable Modulation Depth kbps, 212 kbps, 424 kbps) and Card Emulation
• Dual Receiver Architecture With RSSI for
• RF Field Detector With Programmable Wake-Up Elimination of "Read Holes" and Adjacent Levels for NFC Passive Transponder Emulation Reader System/Ambient In-Band Noise Operation Detection
• RF Field Detector for NFC Physical Collision
• Programmable Power Modes for Ultra Avoidance. Low-Power System Design (Power Down
• Integrated State Machine for ISO14443A <1 μA) Anticollision (Broken Bytes) Operation
• Parallel or SPI Interface (With 128-Byte FIFO)(Transponder Emulation or NFC Passive
• Temperature Range: -40°C to 110°CTarget)
• 32-Pin QFN Package (5 mm x 5 mm)
• Input Voltage Range: 2.7 VDC to 5.5 VDC
• Programmable Output Power: +20 dBm(100 mW), +23 dBm (200 mW)
1.2 TRF7970ARHBR Applications
• Mobile Devices (Tablets, Handsets, etc.)
• Secure Pairing (Bluetooth, WiFi, Other Paired Wireless Networks)
• Public Transport or Event Ticketing
• Passport or Payment (POS) Reader Systems
• Short Range Wireless Communication Tasks (Firmware Updates)
• Product Identification or Authentication
• Medical Equipment or Consumables
• Access Control, Digital Door Locks
• Sharing of Electronic Business Cards
1.3 Description
The TRF7970ARHBR is an integrated analog front end and data-framing device for a 13.56-MHz RFID/Near
Field Communication system. Built-in programming options make it suitable for a wide range of
applications for proximity and vicinity identification systems.
It can perform in one of three modes: RFID/NFC Reader, NFC Peer, or in Card Emulation mode. Built-in
user-configurable programming options make it suitable for a wide range of applications.
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