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TRF7970A Datasheet(PDF) 1 Page - Texas Instruments |
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TRF7970A Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 87 page  Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TRF7970A SLOS743K – AUGUST 2011 – REVISED APRIL 2014 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) • Programmable Output Power: +20 dBm (100 mW), Standards NFCIP-1 (ISO/IEC 18092) and NFCIP ‑2 +23 dBm (200 mW) (ISO/IEC 21481) • Programmable I/O Voltage Levels From 1.8 VDC • Completely Integrated Protocol Handling for to 5.5 VDC ISO15693, ISO18000-3, ISO14443A/B, and • Programmable System Clock Frequency Output FeliCa™ (RF, RF/2, RF/4) from 13.56-MHz or 27.12-MHz • Integrated Encoders, Decoders, and Data Framing Crystal or Oscillator for NFC Initiator, Active and Passive Target • Integrated Voltage Regulator Output for Other Operation for All Three Bit Rates (106 kbps, System Components (MCU, Peripherals, 212 kbps, 424 kbps) and Card Emulation Indicators), 20 mA (Max) • RF Field Detector With Programmable Wake-Up • Programmable Modulation Depth Levels for NFC Passive Transponder Emulation • Dual Receiver Architecture With RSSI for Operation Elimination of "Read Holes" and Adjacent Reader • RF Field Detector for NFC Physical Collision System or Ambient In-Band Noise Detection Avoidance. • Programmable Power Modes for Ultra Low-Power • Integrated State Machine for ISO14443A System Design (Power Down <1 µA) Anticollision (Broken Bytes) Operation • Parallel or SPI Interface (With 127-Byte FIFO) (Transponder Emulation or NFC Passive Target) • Temperature Range: –40°C to 110°C • Input Voltage Range: 2.7 VDC to 5.5 VDC • 32-Pin QFN Package (5 mm x 5 mm) 1.2 Applications • Mobile Devices (Tablets, Handsets) • Short-Range Wireless Communication Tasks (Firmware Updates) • Secure Pairing ( Bluetooth®, Wi-Fi®, Other Paired Wireless Networks) • Product Identification or Authentication • Public Transport or Event Ticketing • Medical Equipment or Consumables • Passport or Payment (POS) Reader Systems • Access Control, Digital Door Locks • Sharing of Electronic Business Cards 1.3 Description The TRF7970A device is an integrated analog front end and data-framing device for a 13.56-MHz RFID and Near Field Communication (NFC) system. Built-in programming options make the device suitable for a wide range of applications for proximity and vicinity identification systems. The device can perform in one of three modes: RFID and NFC reader, NFC peer, or in card emulation mode. Built-in user-configurable programming options make the device suitable for a wide range of applications. The TRF7970A device is configured by selecting the desired protocol in the control registers. Direct access to all control registers allows fine tuning of various reader parameters as needed. Documentation, reference designs, EVM, and source code TI MSP430™ MCUs or ARM® MCUs are available. Device Information PART NUMBER PACKAGE BODY SIZE TRF7970ARHB VQFN (32) 5 mm x 5 mm 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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