The TRF7960 and TRF7961 devices are integrated analog front end and data-framing systems for a 13.56-MHz RFID reader system that supports multiple protocols including ISO/IEC 14443 A and B, FeliCa™, and ISO/IEC 15693. Built-in programming options make it suitable for a wide range of applications for proximity and vicinity identification systems.

The reader 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.

The device supports data rates up to 848 kbps with all framing and synchronization tasks for the ISO protocols onboard. Other standards and even custom protocols can be implemented by using one of the direct modes that the device offers. These direct modes let the application fully control the AFE and also gain access to the raw subcarrier data or the unframed, but already ISO-formatted, data and the associated (extracted) clock signal.

The receiver system has a dual-input receiver architecture to maximize communication robustness. The receivers also include various automatic and manual gain control options. The received signal strength from transponders, ambient sources, or internal levels is available in the RSSI register.

A SPI or parallel interface can be used for the communication between the MCU and the TRF796x reader. When the built-in hardware encoders and decoders are used, transmit and receive functions use a 12-byte FIFO register. For direct transmit or receive functions, the encoders or decoders can be bypassed so the MCU can process the data in real time.

The TRF7960 and TRF7961 devices support a wide supply voltage range of 2.7 V to 5.5 V and data communication levels from 1.8 V to 5.5 V for the MCU I/O interface.

The transmitter has selectable output power levels of 100 mW (+20 dBm) or 200 mW (+23 dBm) equivalent into a 50-Ω load when using a 5-V supply and supports OOK and ASK modulation with selectable modulation depth.

Built-in programmable auxiliary voltage regulator delivers up to 20 mA to supply an MCU and additional external circuits within the reader system.

Start evaluating the TRF7960 multiprotocol transceiver IC with the TRF7960AEVM or the TRF7960ATB.

Documentation, Tools, Reference Designs, and Software, Samples

• Completely Integrated Protocol Handling
• Separate Internal High-PSRR Power Supplies for Analog, Digital, and PA Sections Provide Noise Isolation for Superior Read Range and Reliability
• Dual Receiver Inputs With AM and PM Demodulation to Minimize Communication Holes
• Receiver AM and PM RSSI
• Reader-to-Reader Anticollision
• High Integration Reduces Total BOM and Board Area
  • Single External 13.56-MHz Crystal Oscillator
  • MCU-Selectable Clock-Frequency Output of RF, RF/2, or RF/4
  • Adjustable 20-mA High-PSRR LDO for Powering External MCU
• Easy to Use With High Flexibility
  • Automatically Configured Default Modes for Each Supported ISO Protocol
  • 12 User-Programmable Registers
  • Selectable Receiver Gain
  • Programmable Output Power (100mW or 200mW)
  • Adjustable ASK Modulation Range (8%to30%)
  • Built-In Receiver Band-Pass Filter With User-Selectable Corner Frequencies
• Wide Operating Voltage Range of 2.7V to 5.5V
• Ultra-Low-Power Modes
  • Power Down: <1 μA
  • Standby: 120 μA
  • Active (RX Only): 10 mA
• Parallel 8-Bit or Serial 4-Pin Serial Peripheral Interface (SPI) With MCU Using 12-Byte FIFO
• Ultra-Small 32-Pin QFN Package (5mm×5mm)
• Available Tools (Also See Tools and Software)
  • Reference Design and EVM With Development Software
  • Source Code Available for MSP430? MCU

• Frequency
• 13.56 MHz
• Standard
• ISO 15693, ISO 18000-3
• Operating temperature range (C)
• -40 to 110
• Rating
• Catalog
• Transmission principle
• FDX - ASK, OOK, FSK, PSK

TRF7961的完整型号有：TRF7961RHBR、TRF7961RHBT，以下是这些产品的关键参数及官网采购报价：

TRF7961RHBR，工作温度：-40 to 110，封装：VQFN (RHB)-32，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TRF7961RHBR的批量USD价格：2.444（1000+）

TRF7961RHBT，工作温度：-40 to 110，封装：VQFN (RHB)-32，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TRF7961RHBT的批量USD价格：2.933（1000+）

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该参考设计提供近场通信 (NFC) 模块的完整硬件和固件示例。该模块使用 TI 的 eZ430 UART 连接实现简单连接。该固件示例通过读取 ISO15693、ISO14443A、ISO14443B 和 Felica 标签演示了 NFC 读取器/写入器功能。与一些评估模块不同，该 NFC 模块经过特别设计，易于集成到现有应用中。这样降低了对开发人员资源的需求，同时仍然支持完整的功能。

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此射频识别 (RFID) 参考设计概括了所需的组件和布局注意事项，并提供固件示例以说明如何将 RFID 实施到应用中以从应答器中提取 RFID 数据。RFID 实现了访问控制、预付款和库存管理。随附的文档、硬件和示例代码允许设计人员使用 MSP430 或其他精心挑选的 MCU 快速实现 RFID 功能。

TIDM-NFC-READER — NFC 和 RFID 超低功率卡存在检测参考设计

此参考设计采用 MSP430 微控制器与 TRF79xxA 搭配，是全功能的、以电池供电的 RFID 和 NFC 读取器。此设计包含有关如何通过添加简单电路和小型固件控制逻辑环路给现有设计增加 NFC/RFID 功能的深入细节。