Overview
The TRF7961RHBR is a fully integrated 13.56-MHz RFID reader/writer IC developed by Texas Instruments. This device is designed to support multiple RFID protocols, including ISO/IEC 14443 A and B, FeliCa, and ISO/IEC 15693. It is housed in a 32-pin VQFN (RHB) package and operates over a wide temperature range of -40°C to 110°C. The TRF7961RHBR is highly integrated, featuring built-in protocol handling, dual receiver inputs, and adjustable output power, making it a versatile and reliable choice for proximity and vicinity identification systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TRF7961RHBR |
| Package/Case | 32-VQFN (RHB) |
| Number of Pins | 32 |
| Frequency | 13.56 MHz |
| Operating Temperature Range | -40°C to 110°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Output Power | 100 mW or 200 mW |
| Interface | SPI or Parallel 8-Bit |
| RoHS Compliance | Yes |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
Key Features
- Completely integrated protocol handling for ISO/IEC 14443 A and B, FeliCa, and ISO/IEC 15693 protocols.
- Separate internal high-PSRR power supplies for analog, digital, and PA sections to provide noise isolation.
- Dual receiver inputs with AM and PM demodulation to minimize communication holes.
- Receiver AM and PM RSSI for signal strength indication.
- Reader-to-reader anticollision capabilities.
- Adjustable 20-mA high-PSRR LDO for powering external MCU.
- Programmable output power (100 mW or 200 mW) and adjustable ASK modulation range (8% to 30%).
- Built-in receiver band-pass filter with user-selectable corner frequencies.
- Ultra-low-power modes: Power Down (<1 µA), Standby (120 µA), Active (RX Only) (10 mA).
- Parallel 8-bit or serial 4-pin SPI interface with MCU using 12-byte FIFO.
- Ultra-small 32-pin QFN package (5 mm × 5 mm).
Applications
The TRF7961RHBR is suitable for a wide range of applications in proximity and vicinity identification systems, including:
- Smart cards and contactless payment systems.
- Access control and security systems.
- Inventory tracking and supply chain management.
- Healthcare and medical device identification.
- Automotive and industrial automation systems.
Q & A
- What is the operating frequency of the TRF7961RHBR?
The operating frequency of the TRF7961RHBR is 13.56 MHz.
- What are the supported RFID protocols by the TRF7961RHBR?
The TRF7961RHBR supports ISO/IEC 14443 A and B, FeliCa, and ISO/IEC 15693 protocols.
- What is the package type and pin count of the TRF7961RHBR?
The TRF7961RHBR is packaged in a 32-pin VQFN (RHB) package.
- What is the operating temperature range of the TRF7961RHBR?
The operating temperature range is -40°C to 110°C.
- What are the available output power levels of the TRF7961RHBR?
The output power levels are 100 mW and 200 mW.
- Does the TRF7961RHBR support ultra-low-power modes?
Yes, it supports ultra-low-power modes including Power Down, Standby, and Active (RX Only).
- What interfaces are available for communication with the MCU?
The TRF7961RHBR supports parallel 8-bit or serial 4-pin SPI interfaces.
- Is the TRF7961RHBR RoHS compliant?
Yes, the TRF7961RHBR is RoHS compliant.
- What is the supply voltage range of the TRF7961RHBR?
The supply voltage range is 2.7 V to 5.5 V.
- Are there any evaluation modules available for the TRF7961RHBR?
Yes, evaluation modules such as the TRF7960AEVM and TRF7960ATB are available for development and testing.
