The National Instruments PXI-5690 is a 2-channel PXI RF Amplifier with a 3 GHz maximum frequency, offering both fixed and configurable gain, designed to enhance the dynamic range and sensitivity of PXI RF Signal Vector Analyzers without
The National Instruments PXI-5690 PXI RF Amplifier, with part numbers 779465-01 and 190872E-01, is a versatile 2-channel amplifier designed for a maximum frequency of 3 GHz and is housed in a 3U PXI single-slot module. This amplifier features both fixed and configurable gain, aimed at enhancing the dynamic range and sensitivity of PXI RF Signal Vector Analyzers, particularly the NI PXI-5660.
Channel 0 operates as a fixed gain preamplifier offering a 30 dB gain range, ensuring low noise and a flat frequency response. Channel 1 is a programmable preamplifier with two selectable paths, including an operating gain range from -10 to +20 dB and a step attenuator adjustable in 1 dB nominal steps, providing flexibility for signal amplification requirements.
The NI PXI-5690 supports automatic gain omission by connecting to a direct path, which is especially useful for handling high-power inputs without the need for a triggering scheme. This makes the PXI-5690 a powerful and adaptable tool for engineers and technicians working with complex RF signal analysis.
Feature
Specification
Product Name
National Instruments PXI-5690 PXI RF Amplifier
Part Numbers
779465-01, 190872E-01
Channels
2-channel
Maximum Frequency
3 GHz
Module Size
3U PXI single-slot module
Gain Type
Fixed and Configurable Gain
Functionality
Enhances dynamic range and sensitivity for PXI RF Signal Vector Analyzers
Automatic Gain Omission
Yes, by connecting to a direct path
Compatible Device
NI PXI-5660 RF Vector Signal Analyzer
Triggering Scheme
Not required
CH 0
Fixed gain preamplifier, 30 dB gain range
CH 1
Programmable preamplifier with two selectable paths
Operating Gain (CH 1)
-10 to +20 dB
Step Attenuator (CH 1)
Adjustable in 1 dB nominal steps
Direct Path (CH 1)
Question 1: What is the maximum frequency and the gain range for the fixed gain preamplifier channel of the National Instruments PXI-5690 PXI RF Amplifier? Answer 1: Channel 1 on the National Instruments PXI-5690 PXI RF Amplifier has an operational gain range from -10 to +20 dB, and it is adjustable through a step attenuator that can be set in 1 dB nominal steps.
Question 2: What features of the National Instruments PXI-5690 PXI RF Amplifier enhance the dynamic range and sensitivity of PXI RF Signal Vector Analyzers such as the NI PXI-5660? Answer 2: The step attenuator in channel 1 of the National Instruments PXI-5690 PXI RF Amplifier allows for precise control of signal amplification with adjustments in 1 dB nominal steps, contributing to the amplifier’s flexibility by enabling users to fine-tune the gain to accommodate different signal strengths, thus optimizing the dynamic range for various RF signal analysis applications.
Question 3: What are the features and applications of the National Instruments PXI-5690 PXI RF Amplifier, and how does its provision of both fixed and configurable gain benefit users working with RF signal analysis? Answer 3: The features of the National Instruments PXI-5690 PXI RF Amplifier that enhance the dynamic range and sensitivity of PXI RF Signal Vector Analyzers like the NI PXI-5660 include its fixed and configurable gain options, with Channel 0 offering a fixed 30 dB gain range for low noise and flat frequency response, and Channel 1 providing a programmable preamplifier with a selectable operating gain range from -10 to +20 dB and a step attenuator adjustable in
Question 4: What is the operational gain range for Channel 1 on the National Instruments PXI-5690 PXI RF Amplifier, and how is it adjustable? Answer 4: The National Instruments PXI-5690 PXI RF Amplifier is a 2-channel amplifier with a maximum frequency of 3 GHz, featuring a fixed gain preamplifier with a 30 dB range for Channel 0 and a programmable preamplifier for Channel 1 with selectable paths and a gain range from -10 to +20 dB, including a step attenuator adjustable in 1 dB steps. It benefits users working with RF signal analysis by enhancing the dynamic range and sensitivity
Question 5: What is the purpose of the step attenuator in channel 1 of the National Instruments PXI-5690 PXI RF Amplifier, and how does it contribute to the amplifier’s flexibility in signal amplification? Answer 5: The maximum frequency for the National Instruments PXI-5690 PXI RF Amplifier is 3 GHz, and the gain range for the fixed gain preamplifier channel (Channel 0) is 30 dB.
