TRF7970ATB

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design TRF7970A SLOS743M – AUGUST 2011 – REVISED MARCH 2020 TRF7970A Multiprotocol Fully Integrated 13.56-MHz RFID and Near Field Communication (NFC) Transceiver IC 1 Device Overview 1.1 Features 1 • Supports Near Field Communication (NFC) Standards NFCIP-1 (ISO/IEC 18092) and NFCIP‑2 (ISO/IEC 21481) • Completely Integrated Protocol Handling for ISO/IEC 15693, ISO/IEC 18000-3, ISO/IEC 14443 A and B, and FeliCa™ • Integrated Encoders, Decoders, and Data Framing for NFC Initiator, Active and Passive Target Operation for All Three Bit Rates (106 kbps, 212 kbps, 424 kbps), and Card Emulation • RF Field Detector With Programmable Wake-up Levels for NFC Passive Transponder Emulation Operation • RF Field Detector for NFC Physical Collision Avoidance • Integrated State Machine for ISO/IEC 14443 A Anticollision (Broken Bytes) Operation (Transponder Emulation or NFC Passive Target) • Input Voltage Range: 2.7 VDC to 5.5 VDC 1.2 • • • • Applications Mobile Devices (Tablets, Handsets) Secure Pairing ( Bluetooth®, Wi-Fi®, Other Paired Wireless Networks) Public Transport or Event Ticketing Passport or Payment (POS) Reader Systems 1.3 • Programmable Output Power: +20 dBm (100 mW), +23 dBm (200 mW) • Programmable I/O Voltage Levels From 1.8 VDC to 5.5 VDC • Programmable System Clock Frequency Output (RF, RF/2, RF/4) from 13.56-MHz or 27.12-MHz Crystal or Oscillator • Integrated Voltage Regulator Output for Other System Components (MCU, Peripherals, Indicators), 20 mA (Max) • Programmable Modulation Depth • Dual Receiver Architecture With RSSI for Elimination of "Read Holes" and Adjacent Reader System or Ambient In-Band Noise Detection • Programmable Power Modes for Ultra Low-Power System Design (Power Down