ZHCS363L
August 2011 – March 2017
TRF7970A
PRODUCTION DATA.
1
器件概述
1.1
特性
1.2
应用范围
1.3
说明
1.4
功能方框图
2
修订历史记录
3
Device Characteristics
3.1
Related Products
4
Terminal Configuration and Functions
4.1
Pin Diagram
4.2
Signal Descriptions
Table 4-1
Terminal Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Electrical Characteristics
5.5
Thermal Resistance Characteristics
5.6
Switching Characteristics
6
Detailed Description
6.1
Overview
6.1.1
RFID and NFC Operation – Reader and Writer
6.1.2
NFC Device Operation – Initiator
6.1.3
NFC Device Operation – Target
6.1.3.1
Active Target
6.1.3.2
Passive Target
6.1.3.3
Card Emulation
6.2
System Block Diagram
6.3
Power Supplies
6.3.1
Supply Arrangements
6.3.2
Supply Regulator Settings
6.3.3
Power Modes
6.4
Receiver – Analog Section
6.4.1
Main and Auxiliary Receivers
6.4.2
Receiver Gain and Filter Stages
6.5
Receiver – Digital Section
6.5.1
Received Signal Strength Indicator (RSSI)
6.5.1.1
Internal RSSI – Main and Auxiliary Receivers
6.5.1.2
External RSSI
6.6
Oscillator Section
6.7
Transmitter – Analog Section
6.8
Transmitter – Digital Section
6.9
Transmitter – External Power Amplifier and Subcarrier Detector
6.10
TRF7970A IC Communication Interface
6.10.1
General Introduction
6.10.1.1
Continuous Address Mode
6.10.1.2
Noncontinuous Address Mode (Single Address Mode)
6.10.1.3
Direct Command Mode
6.10.1.4
FIFO Operation
6.10.2
Parallel Interface Mode
6.10.3
Reception of Air Interface Data
6.10.4
Data Transmission From MCU to TRF7970A
6.10.5
Serial Interface Communication (SPI)
6.10.5.1
Serial Interface Mode With Slave Select (SS)
6.10.6
Direct Mode
6.11
TRF7970A Initialization
6.12
Special Direct Mode for Improved MIFARE Compatibility
6.13
NFC Modes
6.13.1
Target
6.13.2
Initiator
6.14
Direct Commands from MCU to Reader
6.14.1
Command Codes
6.14.1.1
Idle (0x00)
6.14.1.2
Software Initialization (0x03)
6.14.1.3
Initial RF Collision Avoidance (0x04)
6.14.1.4
Response RF Collision Avoidance (0x05)
6.14.1.5
Response RF Collision Avoidance (0x06, n = 0)
6.14.1.6
Reset FIFO (0x0F)
6.14.1.7
Transmission With CRC (0x11)
6.14.1.8
Transmission Without CRC (0x10)
6.14.1.9
Delayed Transmission With CRC (0x13)
6.14.1.10
Delayed Transmission Without CRC (0x12)
6.14.1.11
Transmit Next Time Slot (0x14)
6.14.1.12
Block Receiver (0x16)
6.14.1.13
Enable Receiver (0x17)
6.14.1.14
Test Internal RF (RSSI at RX Input With TX ON) (0x18)
6.14.1.15
Test External RF (RSSI at RX Input with TX OFF) (0x19)
6.15
Register Description
6.15.1
Register Preset
6.15.2
Register Overview
6.15.3
Detailed Register Description
6.15.3.1
Main Configuration Registers
6.15.3.1.1
Chip Status Control Register (0x00)
6.15.3.1.2
ISO Control Register (0x01)
6.15.3.2
Control Registers – Sublevel Configuration Registers
6.15.3.2.1
ISO/IEC 14443 TX Options Register (0x02)
6.15.3.2.2
ISO/IEC 14443 High-Bit-Rate and Parity Options Register (0x03)
6.15.3.2.3
TX Timer High Byte Control Register (0x04)
6.15.3.2.4
TX Timer Low Byte Control Register (0x05)
6.15.3.2.5
TX Pulse Length Control Register (0x06)
6.15.3.2.6
RX No Response Wait Time Register (0x07)
6.15.3.2.7
RX Wait Time Register (0x08)
6.15.3.2.8
Modulator and SYS_CLK Control Register (0x09)
6.15.3.2.9
RX Special Setting Register (0x0A)
6.15.3.2.10
Regulator and I/O Control Register (0x0B)
6.15.3.3
Status Registers
6.15.3.3.1
IRQ Status Register (0x0C)
6.15.3.3.2
Interrupt Mask Register (0x0D) and Collision Position Register (0x0E)
6.15.3.3.3
RSSI Levels and Oscillator Status Register (0x0F)
6.15.3.3.4
Special Functions Register (0x10)
6.15.3.3.5
Special Functions Register (0x11)
6.15.3.3.6
Adjustable FIFO IRQ Levels Register (0x14)
6.15.3.3.7
NFC Low Field Level Register (0x16)
6.15.3.3.8
NFCID1 Number Register (0x17)
6.15.3.3.9
NFC Target Detection Level Register (0x18)
6.15.3.3.10
NFC Target Protocol Register (0x19)
6.15.3.4
Test Registers
6.15.3.4.1
Test Register (0x1A)
6.15.3.4.2
Test Register (0x1B)
6.15.3.5
FIFO Control Registers
6.15.3.5.1
FIFO Status Register (0x1C)
6.15.3.5.2
TX Length Byte1 Register (0x1D), TX Length Byte2 Register (0x1E)
7
Applications, Implementation, and Layout
7.1
TRF7970A Reader System Using SPI With SS Mode
7.1.1
General Application Considerations
7.1.2
Schematic
7.2
Layout Considerations
7.3
Impedance Matching TX_Out (Pin 5) to 50 Ω
7.4
Reader Antenna Design Guidelines
8
器件和文档支持
8.1
入门和下一步
8.2
器件命名规则
8.3
工具与软件
8.4
文档支持
8.5
社区资源
8.6
商标
8.7
静电放电警告
8.8
Glossary
9
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RHB|32
MPQF130D
散热焊盘机械数据 (封装 | 引脚)
RHB|32
QFND029X
订购信息
zhcs363l_oa
zhcs363l_pm
8.3
工具与软件
设计套件和评估模块
NFC 收发器附加目标板模块
TRF7970ATB 评估模块让软件应用开发人员能够熟悉所选的米6体育平台手机版_好二三四 (TI) 嵌入式微控制器平台上的 TRF7970A 多协议全集成 13.56MHz NFC/HF RFID IC 的功能，而无需担心射频部分。
NFC 收发器 Booster Pack 插件模块
第三方提供商 DLP Design 所提供的 NFC/RFID BoosterPack 插件模块 (DLP-7970ABP) 是一款附加电路板，旨在满足所有 TI MCU LaunchPad 开发套件的需求。此 BoosterPack 插件模块能够让软件应用开发人员熟悉所选的 TI 嵌入式微控制器平台上的 TRF7970A 多协议全集成式 13.56MHz NFC 和 HF RFID IC 的功能，而无需担心射频部分的开发。
NFC 收发器评估模块
TRF7970AEVM 是一种自成一体的开发平台，可用于评估 NFC 收发器 TRF7970A 的性能。TRF7970A 是一款多协议全集成式 13.56MHz NFC/RFID 收发器 IC。该评估模块与这个 IC 一起可用于开发和评估自定义固件、客户设计的天线以及潜在应答器，适用于各种 NFC/RFID 应用。
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