描述
NI PXIe-5644是一款PXI矢量信号收发仪，结合了矢量信号分析仪、矢量信号发生器以及基于FPGA的实时信号处理和控制功能。以下是其产品详情：
基本信息
品牌：National Instruments（NI）
型号：PXIe-5644
产品类型：矢量信号收发仪
技术参数
RF发生器频率范围：65MHz至6GHz
RF分析仪频率范围：65MHz至6GHz
RF发生器瞬时带宽：80MHz
RF分析仪瞬时带宽：80MHz
发生器调谐时间（典型）：0.95ms
ADC和DAC：采用双通道的16位ADC与DAC，时钟频率为120MS/s，可提供80MHz的复杂带宽。
数字I/O：24个双向LVTTL数字I/O通道，数据速率高达250Mbit/s。
FPGA：内含Xilinx Virtex-6 LX195T FPGA。
内存：2组256MB的DRAM，2MB的SRAM。
总线接口：PCI Express、Gen 1 x4背板连接。
功能特点
高性能：具备宽广的频率覆盖范围和较高的瞬时带宽，能够满足如802.11ac和LTE等最新无线标准的测试需求，测量速度比同类解决方案快10倍以上。
灵活性：基于FPGA技术，可通过LabVIEW FPGA进行编程，用户能够根据自身需求定制仪器功能，实现实时测试、自定义触发、功率伺服等多种功能。
可扩展性：采用3槽3U PXI Express外形结构，可在单个PXI Express机箱中使用多个VST模块，轻松扩展为多输入多输出（MIMO）配置或并行测试系统。
应用领域
无线通信测试：可用于蜂窝通信、无线局域网等领域的信号发射与接收测试、协议验证等。
航空航天与国防：适用于雷达信号测试、卫星通信测试等。
科研与教育：支持软件定义无线电研究、通信原理教学实验等。
The NI PXIe-5644 is a PXI vector signal transceiver that combines a vector signal analyzer,a vector signal generator,and FPGA-based real-time signal processing and control.Here are its product details:
Basic Information
Brand:National Instruments(NI)
Model:PXIe-5644
Product Type:Vector Signal Transceiver
Technical Specifications
RF Generator Frequency Range:65MHz to 6GHz
RF Analyzer Frequency Range:65MHz to 6GHz
RF Generator Instantaneous Bandwidth:80MHz
RF Analyzer Instantaneous Bandwidth:80MHz
Generator Tuning Time(Typical):0.95ms
ADC and DAC:Dual-channel 16-bit ADC and DAC with a clock frequency of 120MS/s,providing a complex bandwidth of 80MHz.
Digital I/O:24 bidirectional LVTTL digital I/O channels,with data rates up to 250Mbit/s.
FPGA:Includes a Xilinx Virtex-6 LX195T FPGA.
Memory:Two 256MB DRAM modules and 2MB SRAM.
Bus Interface:PCI Express,Gen 1 x4 backplane connection.
Features
High Performance:Offers a wide frequency coverage and high instantaneous bandwidth,meeting the testing requirements of the latest wireless standards such as 802.11ac and LTE.Measurement speed is more than 10 times faster than similar solutions.
Flexibility:Based on FPGA technology,it can be programmed via LabVIEW FPGA,allowing users to customize instrument functions to achieve real-time testing,custom triggering,power servoing,and other features.
Scalability:Utilizing a 3-slot 3U PXI Express form factor,multiple VST modules can be used in a single PXI Express chassis,easily expanding to MIMO configurations or parallel test systems.
Applications
Wireless Communication Testing:Suitable for signal transmission and reception testing,protocol verification,etc.,in fields such as cellular communication and wireless LAN.Aerospace and Defense:Suitable for radar signal testing,satellite communication testing,etc.
Scientific Research and Education:Supports software-defined radio research,communication principle teaching experiments,etc.
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