這PXIe國家儀器公司-5694是一個中頻調(diào)理模塊對于PXI系統(tǒng)。該模塊配有5個模擬濾波器，被認為是各種頻譜監(jiān)控應(yīng)用的理想解決方案。該模塊在測量信號和干擾信號的頻率非常接近的應(yīng)用中工作良好。該模塊提供各種模擬濾波器，這一特性有助于您實現(xiàn)所需的選擇性和測量速度。這些模擬濾波器的可用性防止了數(shù)字化儀的ADC轉(zhuǎn)換器過載。因此鎳PXIe-5694增加了截獲的可能性，并有助于迅速解決低功率信號。

這PXIe國家儀器公司-5694 PXI 中頻調(diào)理模塊提供三種信號路徑，包括信號調(diào)理下變頻、使能/禁用路徑和 中頻調(diào)節(jié)旁路。該模塊的前面板IF連接器是一個SMA母連接器，使用50歐姆參考阻抗工作。類似地，該模塊的IF輸出連接器位于前面板上，也是一個SMA母連接器。

這倪PXIe-5694是一個PXI快速模塊，部署時需要3U大小的插槽，工作電壓為3.3 V時需要約1.31安培的電流，該模塊集成的五個模擬濾波器分別是5 MHz和20 MHz LC分立元件濾波器、110 kHz和110 kHz SAW濾波器以及1.4 MHz表面聲波濾波器。因此，用戶可以根據(jù)自己的要求和應(yīng)用需求選擇帶通濾波器

The National Instruments PXIe-5694 is an IF Conditioning Module for PXI systems. This module comes equipped with 5 analog filters and is considered an ideal solution for various spectrum monitoring applications. This module works well in applications where the frequency of the measurement signal and interfering signals exist in close proximity of one another. This module offers various analog filters– a feature that helps you achieve the required selectivity and measurement speed. The availability of these analog-filters prevents the ADC converters of the digitizer from overloading. Thus, the NI PXIe-5694 increases the probability of intercept and helps in the prompt resolution of the low-power signals. 

The National Instruments PXIe-5694 PXI IF Conditioning Module provides three signal paths, including signal conditioning downconversion, enabled/disabled paths, and an IF conditioning bypass path. The front panel IF connector of this module is an SMA female connector that operates with 50-ohm reference impedance. Similarly, the IF output connector of this module is provided on the front panel and is an SMA female connector as well. 

The NI PXIe-5694 is a PXI Express module, which requires a 3U size slot for deployment and requires around 1.31 amperes of current, while operating at 3.3 V. The five analog filters incorporated in this module are 5 and 20 MHz LC discrete component filters, 400 and 110 kHz SAW filters, and a 1.4 MHz surface acoustic wa