TEKTRONIX VX4240波形分析仪 PDF资料
1.产 品 资 料 介 绍：
TEKTRONIX VX4240 是一款基于 VXIbus 架构的波形数字化仪与分析仪模块，专为C尺寸或D尺寸VXI主机架设计，适用于自动化测试系统中的高精度信号采集与分析。
12位高分辨率ADC，采样率10 MS/s
5 MHz模拟带宽，覆盖DC至5MHz频率范围
电压输入范围：±0.5V至±100V共8档，支持100V以内任意用户自定义范围
虚拟量程电路，非标准量程下仍能提供12位有效加权
支持AC/DC耦合、差分/单端输入、50Ω/1MΩ阻抗选择
超过40种板载信号分析例程，涵盖FFT、THD、SNR、SFDR等频域分析及峰值、RMS、上升/下降时间等时域参数测量
支持外部TTL触发、VXIbus TTL触发、命令触发及软件触发，可实现两种触发源的与/或逻辑组合
标准256K字采样内存，可选配512K字或1M字扩展内存
支持预触发、后触发、中心触发及记录模式（最多65534条记录）
采样时钟0.005Hz至10MHz可编程，触发延迟200ns至420s可调
板载INMOS T800浮点RISC处理器，可完成信号分析与预处理
内置EPROM与校准参数存储，简化校准流程
综上所述，TEKTRONIX VX4240 凭借12位高精度采集、灵活的量程配置、强大的板载分析能力及丰富的触发控制，成为VXI自动化测试系统中信号数字化与分析的关键组件。
TEKTRONIX VX4240 is a waveform digitizer and analyzer module based on VXIbus architecture, designed specifically for C-size or D-size VXI mainframe, suitable for high-precision signal acquisition and analysis in automated testing systems.
12 bit high-resolution ADC with a sampling rate of 10 MS/s
5 MHz analog bandwidth, covering the frequency range from DC to 5MHz
Voltage input range: 8 levels from ± 0.5V to ± 100V, supporting any user-defined range within 100V
Virtual range circuit, capable of providing 12 bit effective weighting even in non-standard ranges
Support AC/DC coupling, differential/single ended input, 50 Ω/1M Ω impedance selection
Over 40 onboard signal analysis routines, covering frequency domain analysis such as FFT, THD, SNR, SFDR, as well as peak RMS、 Measurement of time-domain parameters such as rise/fall time
Supports external TTL triggering, VXIbus TTL triggering, command triggering, and software triggering, and can realize the combination of two triggering sources and/or logic
Standard 256K word sampling memory, optional 512K word or 1M word expansion memory
Support pre trigger, post trigger, center trigger, and recording modes (up to 65534 records)
The sampling clock is programmable from 0.005Hz to 10MHz, and the trigger delay is adjustable from 200ns to 420s
On board INMOS T800 floating-point RISC processor, capable of signal analysis and preprocessing
Built in EPROM and calibration parameter storage, simplifying the calibration process
In summary, the TEKTRONIX VX4240, with its 12 bit high-precision acquisition, flexible range configuration, powerful onboard analysis capabilities, and rich trigger control, has become a key component for signal digitization and analysis in VXI automated testing systems.
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