Datasheet > TRF79XXA

TRF79XXA

更新时间： 2024-11-24 02:58:47

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
85页	3129K
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HF-RFID Reader Layout Design Guide

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TRF79XXA 数据手册

TRF7970A

www.ti.com

SLOS743B –AUGUST 2011–REVISED MARCH 2012

MULTI-PROTOCOL FULLY INTEGRATED 13.56-MHz RFID/NEAR

FIELD COMMUNICATION (NFC) TRANSCEIVER IC

Check for Samples: TRF7970A

1 Introduction

1.1 Features

• Supports Near Field Communication (NFC)

Standards NFCIP-1 (ISO/IEC 18092) and

NFCIP‑2 (ISO/IEC 21481)

• Completely Integrated Protocol Handling for

ISO15693, ISO18000-3, ISO14443A/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 ISO14443A

Anticollision (Broken Bytes) Operation

(Transponder Emulation or NFC Passive

Target)

• 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 <1 µA)

• Parallel or SPI Interface (With 128-Byte FIFO)

• Temperature Range: -40°C to 110°C

• 32-Pin QFN Package (5 mm x 5 mm)

• Input Voltage Range: 2.7 VDC to 5.5 VDC

1.2 Applications

•

Mobile Devices (Tablets, Handsets)

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 TRF7970A 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.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products conform to

specifications per the terms of the Texas Instruments standard warranty. Production

processing does not necessarily include testing of all parameters.

12 3 4 5 6 7...85

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