ST25RU3993-EVAL ST25RU3993 reader IC evaluation board

  • Mã sản phẩm: ST25RU3993-EVAL
  • Nhà sản xuất: STMicroelectronics
  • Website hỗ trợ:

The ST25RU3993-EVAL board is a RAIN® RFID (UHF) reader system based on the ST25RU3993 integrated reader IC. The objective of the ST25RU3993-EVAL board is to provide engineers, students and technically interested people with a comprehensive RAIN RFID reader system, which allows evaluation of the properties and the feature set of the ST25RU3993. For this purpose the architecture of the ST25RU3993-EVAL board combines a high RF power, long-range reader and a low RF power, short-range RAIN RFID reader. In addition the ST25RU3993-EVAL board has been fitted with numerous easy to access test points and measurement possibilities. 

The ST25RU3993-EVAL is controlled by a graphical user interface (GUI) running on a host PC through a USB/UART bridge (it requires a driver installation). The GUI can be found on
The ST25RU3993-EVAL is powered through a USB3.0 port to correctly operate the high RF power long-range configuration of the reader. If a USB3.0 port is not available, a USB2.0 Y-cable or an external power supply can be used to enable the long-range capabilities of the reader. If neither is available only the low RF power short-range reader configuration is available.
The ST25RU3993-EVAL provides two SMB (male) antenna connectors, which can be controlled via the GUI. To enable scanning for RAIN RFID transponders the user must connect the provided kit antenna or a suitable 50 Ω UHF antenna for the targeted frequency range.
The ST25RU3993-EVAL board supports frequency channels ranging from 840 to 960 MHz and Arm®-based devices

Key Features

  • Based on the ST25RU3993 RAIN®(UHF) RFID reader IC
    • ISO/IEC 18000-63:2015 / Gen2V2
    • ISO/IEC 18000-62:2012
  • Two SW-controlled power amplifier (PA) options
    • External PA: 29 dBm max TX power
    • Internal PA: 18 dBm max TX power
    • Configurable TX power level
    • Power detector to monitor TX power
    • Carrier cancellation circuitry
    • Automatic / manual carrier cancellation
    • Differential RX input
    • Maximum sensitivity: -80 dBm
    • Adaptive / manual sensitivity configuration
    • External reference: 20 MHz TCXO, clipped sine wave
    • External reference option: 20 MHz crystal
    • Frequency: 840 to 960 MHz
    • Adaptive / manual anti-collision slot handling
    • Continuous modulated RF output mode
    • Continuous wave RF output mode
    • Two antenna connectors: SMB (F)
    • Automatic / manual antenna port switching
    • Reflected power measurement
    • Carrier sense (LBT)
    • Transponder RSSI display
    • Direct command support
    • Transponder EPC read / write
    • Application start based on transponder reads
    • Generic custom transponder command tool
    • Store / recall reader configuration
    • Configurable register map
  • Host interface and supply
    • USB / UART bridge
    • USB receptacle: Micro, B-type
    • Main supply: 5 V USB (3.0)
  • MCU
    • STM32L476RGT6 (Arm® 32-bit Cortex®-M4)
    • 64 MHz
    • 128-Kbyte RAM
    • 1-Mbyte Flash memory
    • SPI mode 1 (4 MHz)
    • Firmware programmable through USB / UART
    • SWD debug interface
  • LED Indicators
    • Power amplifier selection
    • Carrier cancellation tuning activity
    • Carrier cancellation tuning OK
    • OSC OK (20 MHz external reference)
    • PLL OK
    • RF ON
    • No tag response
    • Tag CRC error
    • Tag found
    • Active antenna port
    • Power amplifier option
    • BT OK (not installed)
  • Test points
    • In-circuit RF power levels and signals
    • RFID communication TX and RX
    • UART and SPI signal lines
    • UART_LOG for debug purposes
    • Control voltage of internal VCO
    • RF power detector output voltage
    • 20 MHz reference signal
    • External PA BIAS voltage
    • LDO output voltages
    • LDOs: 0 Ω resistor for current consumption measurement
    • Main supply: jumper for current consumption measurement
  • Buttons
    • MCU reset
    • MCU boot mode
    • BT module reset button (optional)
  • Buzzer (optional)
  • Wireless interface (optional)
    • BT4.0 - SPP profile
    • JTAG interface: for BT module programming
    • BT module boot mode jumper (optional)
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