Overview
The TRF7962A, produced by Texas Instruments, is a fully integrated 13.56-MHz RFID reader/writer IC designed to support ISO/IEC 15693 and ISO/IEC 18000-3 standards. This device is an integrated analog front-end (AFE) and data-framing device, making it suitable for a wide range of applications in proximity and vicinity identification systems. The TRF7962A offers built-in programming options, allowing for fine-tuning of various reader parameters and support for multiple protocols, including NFC Forum tag types 1 and 5.
Key Specifications
| Parameter | Description |
|---|---|
| Input Voltage Range | 2.7 VDC to 5.5 VDC |
| Programmable Output Power | +20 dBm (100 mW) or +23 dBm (200 mW) |
| Programmable I/O Voltage Levels | 1.8 VDC to 5.5 VDC |
| System Clock Frequency Output | RF, RF/2, RF/4 |
| Modulation Types | OOK and ASK with selectable modulation depth |
| Receiver Architecture | Dual-input receiver with RSSI for noise detection |
| Interface | Parallel or SPI |
| Power Modes | Programmable power modes with power down < 0.5 µA |
| Temperature Range | –25°C to 85°C |
| Package | 32-Pin QFN Package (5 mm × 5 mm) (RHB) |
Key Features
- Completely integrated protocol handling for ISO/IEC 15693 and ISO/IEC 18000-3 standards.
- Programmable output power and I/O voltage levels.
- Programmable system clock frequency output (RF, RF/2, RF/4).
- Programmable modulation depth and support for OOK and ASK modulation.
- Dual receiver architecture with RSSI for eliminating 'read holes' and detecting ambient noise.
- Programmable power modes for ultra-low-power system design.
- Parallel or SPI interface for communication with the MCU.
- Integrated voltage regulator for microcontroller supply.
- Support for NFC Forum tag types 1 and 5.
Applications
- Product authentication.
- Access control.
- Digital door locks.
- Library management.
- Medical systems.
- Remote sensor applications.
Q & A
- What is the operating frequency of the TRF7962A?
The TRF7962A operates at a frequency of 13.56 MHz.
- What are the supported communication interfaces?
The TRF7962A supports both parallel and SPI interfaces for communication with the MCU.
- What are the programmable output power levels of the TRF7962A?
The TRF7962A has programmable output power levels of +20 dBm (100 mW) or +23 dBm (200 mW).
- What modulation types are supported by the TRF7962A?
The TRF7962A supports OOK and ASK modulation with selectable modulation depth.
- What is the temperature range of the TRF7962A?
The TRF7962A operates within a temperature range of –25°C to 85°C.
- What is the package type of the TRF7962A?
The TRF7962A comes in a 32-Pin QFN Package (5 mm × 5 mm) (RHB).
- Does the TRF7962A support NFC Forum tag types?
Yes, the TRF7962A supports NFC Forum tag types 1 and 5.
- What is the input voltage range of the TRF7962A?
The input voltage range of the TRF7962A is 2.7 VDC to 5.5 VDC.
- Does the TRF7962A have integrated voltage regulation for the MCU?
Yes, the TRF7962A has an integrated voltage regulator that can supply up to 20 mA to the MCU and additional external circuits.
- What are some typical applications of the TRF7962A?
Typical applications include product authentication, access control, digital door locks, library management, medical systems, and remote sensor applications.
