Overview
The TRF7962A, part of the TRF7962RHBR package, is an integrated analog front-end (AFE) and data-framing device designed for 13.56-MHz RFID reader/writer systems. It supports ISO/IEC 15693 and ISO/IEC 18000-3 standards, making it suitable for a wide range of applications in proximity and vicinity identification systems. The device offers built-in programming options, allowing for fine-tuning of various reader parameters and support for multiple data rates and modulation schemes.
Key Specifications
| Parameter | Specification |
|---|---|
| Frequency | 13.56 MHz |
| Supported Standards | ISO/IEC 15693, ISO/IEC 18000-3 |
| 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 Schemes | OOK and ASK with selectable modulation depth |
| Receiver Architecture | Dual-input receiver with RSSI for noise detection |
| Power Modes | Power Down (<0.5 µA), Standby, Active |
| Interface | Parallel or SPI |
| Integrated Voltage Regulator | Up to 20 mA for MCU and external circuits |
| Temperature Range | –25°C to 85°C |
| Package | 32-Pin QFN (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.
- Dual receiver architecture with RSSI for eliminating 'read holes' and detecting ambient noise.
- Programmable system clock frequency output and modulation depth.
- Ultra-low-power modes with power down current less than 0.5 µA.
- Parallel or SPI interface for communication with MCU.
- Integrated voltage regulator for supplying MCU and external circuits.
- Support for NFC Forum tag type 5 and custom protocols through Direct Mode 0.
Applications
The TRF7962A is suitable for various applications in proximity and vicinity identification systems, including:
- Access control systems.
- Inventory management.
- Payment systems.
- NFC applications, such as reading and writing NFC Forum tag type 5.
- Custom RFID solutions using Direct Mode 0.
Q & A
- What frequency does the TRF7962A operate at?
The TRF7962A operates at a frequency of 13.56 MHz.
- Which standards does the TRF7962A support?
The TRF7962A supports ISO/IEC 15693 and ISO/IEC 18000-3 standards.
- 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 interfaces are available for communication with the MCU?
The TRF7962A supports both parallel and SPI interfaces for communication with the MCU.
- What is the temperature range of the TRF7962A?
The temperature range of the TRF7962A is –25°C to 85°C.
- Does the TRF7962A support NFC applications?
- How does the TRF7962A manage power consumption?
The TRF7962A has ultra-low-power modes, including a power down current of less than 0.5 µA.
- What is the package type of the TRF7962A?
The TRF7962A comes in a 32-Pin QFN package (5 mm × 5 mm) (RHB).
- Can the TRF7962A be used for custom RFID protocols?
- What is the role of the integrated voltage regulator in the TRF7962A?
The integrated voltage regulator delivers up to 20 mA to supply the MCU and additional external circuits.
