這美國國家儀器公司PXI-5690 PXI射頻放大器(零件號:779465-01)，是一款雙通道、3 GHz可編程模塊，在3U PXI單槽模塊中提供固定增益和可配置增益。這鎳PXI-5690具有增益和噪聲特性，可提升的動態(tài)范圍和影響范圍PXI射頻信號矢量分析儀。這PXI-5690可以通過與直接路徑相關聯來自動忽略其增益。這種有用性增強了對鎳PXI-5690 PXI射頻信號分析儀通過改變動態(tài)范圍來輕松監(jiān)控極弱和極強的信號。

這PXI-5690旨在與射頻矢量信號分析儀(如NI PXI-5660)相關聯。這國家文書PXI-5690是一個簡單的小工具，按照預定的路徑和增益設置來增強或壓縮其輸入信號。不需要觸發(fā)計劃。

在該模型中，(CH 0)作為固定增益前置放大器工作，范圍增益為30 dB。該通道具有低噪聲系數和水平頻率響應，因此用戶可以像使用常規(guī)固定增益前置放大器一樣使用CH 0。另一方面，(CH 1)作為可編程前置放大器工作，包含兩個客戶端可選路徑。

在……上倪PXI-5690主路徑是主要路徑，由固定增益增強和前置步進衰減器組成，步進衰減器可根據客戶指定的增益設置通過編程以1 dB標稱步進移動。輸出的工作增益在- 10至+20 dB之間。另一方面，直接路徑為您提供了繞過衰減器-增強器硬件的選擇。該路徑對于處理可能導致RF前置放大器失真的較高功率輸入很有價值。

The National Instruments PXI-5690 PXI RF Amplifier (Part Number: 779465-01), is a 2-channel, 3 GHz programmable module that offers fixed gain and configurable gain in a 3U PXI single-slot module. The NI PXI-5690 has gain and noise qualities that upgrade the dynamic range and affectability of PXI RF Signal Vector Analyzers. The PXI-5690 can automatically omit its gain by associating with a direct path. This usefulness enhances the testing and checking execution of the NI PXI-5690 PXI RF Signal Analyzer by changing the dynamic range to easily monitor extremely weak and strong signals.

The PXI-5690 is intended to be associated with RF vector signal analyzers, such as, the NI PXI-5660. The National Instruments PXI-5690 is a simple gadget that enhances or constricts its input signal as indicated by the predetermined path and gain settings. No triggering plan is required.

In this model, (CH 0) works as a settled gain preamplifier with a range gain of 30 dB. This channel offers a low noise figure and a level frequency reaction, so the user can utilize CH 0 as they would use a customary fixed gain preamplifier. On the other hand, (CH 1) works as a programmable preamplifier containing two client selectable paths.

On the NI PXI-5690, the main path is the primary path and consists of fixed gain enhancement preceded by a step attenuator that is movable by programming in 1 dB nominal steps according to client specified gain settings. The operating gain of the output is between - 10 and +20 dB. The direct path, on the other hand, gives you the alternative of bypassing the attenuator-intensifier hardware. This path is valuable for taking care of higher power inputs that may cause distortion in the RF preamplifier.