产品概述
描述
在840-960 MHz UHF频段，ST25RU3993 RAIN® (UHF) RFID读卡器设备提供多协议支持，并与ISO18000-62 & -63、ISO29143和GS1的EPC UHF Gen2空中接口协议兼容。它包括一个片上VCO和一个功率放大器，可提供一整套RFID功能，包括密集读写器模式（DRM）功能，并能支持跳频、低电平传输编码、低电平解码、数据成帧和CRC校验。
ST25RU3993可以极低功率运行，这使其适用于便携式和电池供电的设备，如手机。
ST25RU3993采用7x7 mm QFN封装，具有很高的灵敏度，并能抵抗天线反射和自干扰的影响。这对于移动应用和嵌入式应用非常重要，在这些应用中天线设计常受到成本或尺寸的限制。其高灵敏度使得终端产品在使用更简单更便宜的天线时，也能实现其所需的读取范围，从而可以降低整个系统成本。
由于其高度集成性，ST25RU3993仅需一个外部8位微控制器即可创建完整的RFID读写器系统，因此无需复杂的RFID协处理器。
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所有功能
- 供电电压范围为3.0至3.6 V
- 有限工作电压可低至2.7 V
- 最大PA供电电压为4.3 V
- 外设I/O电源范围为1.65至5.5 V
- 协议支持：
- ISO 18000-6C（EPC Class1 Gen2）
- ISO 29143（移动RFID的空中接口）
- 直接模式的ISO 18000-6A/B
- DRM：用于M4和M8的250 kHz和320 kHz滤波器
- 集成电源稳压器
- 支持跳频
- ASK或PR-ASK调制
- 自动I/Q选择
- 采用8位线性RSSI的标签跟踪相位位
- 温度范围：-40 °C至85 °C
- 48引脚QFN（7x7x0.9 mm）封装
- 标签读取速度最快可达到700*标签/秒（16位标签EPC长度）
- 供电电压范围为3.0至3.6 V
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Choose design tool: 
Power Management Design Center
Power Supply Design Tool
• SMPS design, by topology, by type and by product
• PFC design with analog and digitial control
• Supports various PCB configurations
Choose type: DC/DC AC/DC 太阳能电池充电器
Power Management Design Center
LED Lighting Design Tool
• Handles AC-DC and DC-DC design in common topologies
• Displays interactive and annotated schematic
• Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type: DC/DC AC/DC
Power Management Design Center
Digital Power Workbench
• Provides a step-by-step optimized design of power section and control loop
• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
Power Management Design Center
Power Tree Designer
• Specify input/output power for each node in the tree
• Check for consistency
• Design each individual node
Choose design tool: 
Thermal-electrical Simulators for Components
AC Switches Simulator
• Select ratings and application waveforms
• Get junction temperature and blocking voltage graphs
• Search and sort suitable devices
Thermal-electrical Simulators for Components
Rectifier Diodes Simulator
• Select ratings and application waveforms
• Estimate power losses
• Search and sort suitable devices
Thermal-electrical Simulators for Components
STPOWER Studio
• Supports long mission profiles
• Provides power loss and temperature graphs
• Helps define heatsink thermal properties
Thermal-electrical Simulators for Components
Twister Sim
• Help select the right ViPOWER Automotive power device
• Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
• Supports various PCB configurations
Thermal-electrical Simulators for Components
TVS Simulator
• Specify system ratings and surge waveform
• Search and sort suitable devices
Thermal-electrical Simulators for Components
Estimate
• Build simple schematics and firmware inputs in minutes
• Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool: 
Signal Conditioning Design Tool
Active Filters
• Handles multi-stage-designs and common topologies
• Returns circuit component values
• Provides gain, phase and group delay graphs
• Low Pass, High Pass and Band Pass
Signal Conditioning Design Tool
Comparators
• Handles most common configurations
• Returns circuit components values
• Provides I/O signal waveforms
• Inverting, Non Inverting, Window
Signal Conditioning Design Tool
Low side Current Sensing
• Returns circuit component values
• Provides current error graphs
Signal Conditioning Design Tool
High side Current Sensing
• Provides current error graphs.
• Help to select the right High side current sensing and shunt devices.
Choose design tool: 
NFC/RFID Calculators
NFC Inductance
• Input geometry and substrate properties
• Get antenna impedance
NFC/RFID Calculators
UHF Link Budget
• Enter forward and reverse link characteristics
• The tool returns link budget estimate
NFC/RFID Calculators
NFC Tuning Circuit
• Enter antenna parameter and matching target
• Select the topology of the matching network
• The tool returns component values for the desired design targets
EDA符号、封装和3D模型
STMicroelectronics - ST25RU3993
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
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符号
封装
3D模型