NI PXI-5670
NI PXI-5670
NI PXI-5670

NI PXIe-5672 | 6.6 GHz Wideband Signal Generator

  • Brand:​ National Instruments
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    Model:​ PXIe-5672
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    Product Type:​ PXI Express RF Vector Signal Generator
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    Series:​ PXI Express
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    Core Function:​ Generates high-fidelity RF vector signals with wide instantaneous bandwidth for advanced communications testing.
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    Key Specs:​ 6.6 GHz frequency range, 200 MHz instantaneous bandwidth, 16-bit resolution.
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Part number: NI PXIe-5672
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Description

PXIe-5672: Product Overview
The National Instruments PXIe-5672 is a high-performance PXI Express RF vector signal generator designed for advanced communications test applications requiring wide instantaneous bandwidth and high signal quality. This instrument represents the third-generation evolution in NI’s signal generator portfolio, providing enhanced performance characteristics for testing complex wideband systems. The module operates across a frequency range from 85 MHz to 6.6 GHz with an impressive 200 MHz of instantaneous bandwidth, supporting the most demanding wideband signal generation requirements in modern wireless communications.
Installed in a PXI Express chassis, the module functions as a complete signal generation solution, incorporating a high-speed arbitrary waveform generator, vector signal generator, and RF upconverter stages. The architecture is optimized for generating complex modulated signals with exceptional spectral purity, making it suitable for testing multi-carrier systems, radar systems, and emerging wireless standards that require wide bandwidths. The instrument supports both standard-compliant waveform generation for technologies like 5G NR, Wi-Fi 6/6E, and custom signal creation for specialized applications in defense and aerospace.

NI PXI-5670

NI PXI-5670

PXIe-5672: Technical Specifications
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    Model Number:​ PXIe-5672
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    Manufacturer:​ National Instruments
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    Product Type:​ PXI Express RF Vector Signal Generator
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    Frequency Range:​ 85 MHz to 6.6 GHz
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    Instantaneous Bandwidth:​ 200 MHz
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    Output Power Range:​ -140 dBm to +18 dBm
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    Resolution:​ 16 bits
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    Sample Rate:​ 200 MS/s
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    Spurious Emissions:​ < -55 dBc (typical)
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    Phase Noise:​ -110 dBc/Hz at 100 kHz offset (1 GHz carrier)
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    Adjacent Channel Power Ratio (ACPR):​ > 55 dB (typical for 5G NR signals)
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    Frequency Accuracy:​ ±1 ppm
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    Modulation Formats:​ QPSK, QAM, OFDM, and custom modulations
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    Waveform Memory:​ 512 MB standard (expandable)
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    I/Q Impairments:​ Programmable I/Q offset, gain, and phase imbalance
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    Interface:​ PXI Express x4
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    Synchronization:​ PXI trigger lines, 10 MHz reference clock
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    Operating Temperature:​ 0°C to 55°C

    NI PXI-5670

    NI PXI-5670

Core Features & Customer Value
The PXIe-5672 delivers significant value through its combination of wide instantaneous bandwidth and high-frequency range. The 200 MHz instantaneous bandwidth enables generation of extremely wide signals required for testing 5G NR FR1 carriers, wideband radar systems, and multi-carrier aggregation scenarios. This bandwidth capability reduces testing time by allowing simultaneous evaluation of multiple carriers or wideband signals that would require sequential testing with narrower bandwidth instruments.
The instrument’s enhanced output power​ of up to +18 dBm provides additional headroom for testing receiver sensitivity and compression characteristics without requiring external amplification in many applications. The improved dynamic range and signal purity​ ensure accurate characterization of receiver performance under realistic signal conditions, particularly important for testing advanced modulation schemes with high peak-to-average power ratios.
Integration with the PXI Express platform​ provides significantly higher data transfer rates compared to previous PXI implementations, enabling rapid waveform updates and longer signal capture times. The module’s advanced synchronization capabilities​ allow precise alignment with other instruments in multi-channel MIMO test configurations or when used in conjunction with signal analyzers for closed-loop testing scenarios.
Typical Applications
In 5G NR testing, the module generates wideband signals for FR1 frequency range testing, supporting carrier bandwidths up to 100 MHz and carrier aggregation scenarios that require simultaneous generation of multiple component carriers.
For radar system testing, the instrument creates complex pulsed waveforms with sophisticated modulation schemes including linear frequency modulation (chirp) and phase-coded waveforms for evaluating modern radar receivers and signal processing algorithms.
In satellite communication testing, the generator produces wideband signals for testing high-throughput satellite systems and bent-pipe transponders that require wide instantaneous bandwidths to support multiple channels.

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