描述
产品定位与功能
NI PXIe-5653推测为PXI Express平台高带宽数字化仪/波形发生器,专为高速信号采集与生成场景设计,适用于航空航天测试、高速数字通信验证及动态信号分析。其核心功能包括:
多通道同步采样:支持8/16通道同步(可配置);
高采样率:≥1 GS/s(单通道模式);
灵活触发:边沿/脉冲宽度/模式触发(支持复杂事件逻辑)。
核心参数与性能
信号采集链路
-带宽:DC–250 MHz(-3 dB点);
-分辨率:16/14 bit(可选配置);
-动态范围:≥70 dB SINAD(典型值)。
数据传输与存储
-系统带宽:4×PCIe×1链路(理论峰值1.06 GB/s);
-板载缓存:2 GB DDR4(支持波形预加载与后处理)。
物理接口
-信号输入/输出:BNC接头(差分/单端可选);
-同步信号:PXIe Star Trigger及外部参考时钟(10 MHz输入/输出)。
技术特点
架构优化
-FPGA协处理:内置Xilinx Artix-7 FPGA实现高速信号预处理(如FFT实时计算);
-分布式时钟:通过PXIe背板同步多模块相位(抖动<100 fs)。
软件生态
-驱动兼容:NI-DAQmx与LabVIEW信号处理工具包;
-协议支持:JESD204B接口标准(高速ADC/DAC链路)。
环境适应性
-抖动容限:±50 ppm(时钟同步场景需外接OCXO参考源);
-散热设计:被动散热(依赖机箱风扇)。
典型应用场景
高速通信测试
-5G毫米波信号实时捕获(带宽>200 MHz);
-光通信眼图分析(10 Gbps以上速率)。
动态物理量测量
-振动台多轴加速度信号同步采集(抗混叠滤波器集成);
-爆炸冲击波压力传感器阵列记录(高g力冲击耐受设计)。
Product Positioning and Functions
NI PXIe-5653 is speculated to be a high-bandwidth digitizer/waveform generator for PXI Express platform,designed for high-speed signal acquisition and generation scenarios,suitable for aerospace testing,high-speed digital communication verification and dynamic signal analysis.Its core functions include:
Multi-channel synchronous sampling:supports 8/16 channel synchronization(configurable);
High sampling rate:≥1 GS/s(single channel mode);
Flexible trigger:Edge/Pulse Width/Mode Trigger(supports complex event logic).
Core parameters and performance
Signal acquisition link
-Bandwidth:DC–250 MHz(-3 dB points);
-Resolution:16/14 bit(optional configuration);
-Dynamic range:≥70 dB SINAD(typical).
Data transmission and storage
-System bandwidth:4×PCIe×1 link(theoretical peak 1.06 GB/s);
-Onboard cache:2 GB DDR4(supports waveform preloading and post-processing).
Physical interface
-Signal input/output:BNC connector(differential/single-ended optional);
-Synchronous signal:PXIe Star Trigger and external reference clock(10 MHz input/output).
Technical Features
Architecture optimization
-FPGA coprocessing:Built-in Xilinx Artix-7 FPGA realizes high-speed signal preprocessing(such as real-time FFT calculation);
-Distributed Clock:Synchronize multi-module phases through PXIe backplane(jitter<100 fs).
Software Ecology
-Driver compatibility:NI-DAQmx and LabVIEW signal processing toolkit;
-Protocol support:JESD204B interface standard(high-speed ADC/DAC link).
Environmental adaptability
-Jitter tolerance:±50 ppm(clock synchronization scenarios require external OCXO reference source);
-Heat dissipation design:passive heat dissipation(relying on the chassis fan).
Typical application scenarios
High-speed communication test
-Real-time capture of 5G mmWave signal(bandwidth>200 MHz);
-Optical communication eye diagram analysis(rates above 10 Gbps).
Dynamic physical quantity measurement
-Synchronous acquisition of multi-axis acceleration signals of vibration table(anti-aliasing filter integration);
-Explosion shock wave pressure sensor array recording(high g force shock resistance design).