NI 5540 RF Combiner Module

Description

NI 5540 RF Combiner Module

The NI PXIe-5540 (often referenced as part of the NI 5540 audio signal generator/analyzer family or PXIe-5540 series) is a high-performance PXI Express Audio Signal Generator and Analyzer Module developed by National Instruments (NI). It is specifically engineered for automated test systems (ATE) requiring high-precision analog audio signal generation and measurement.

Product Detailed Description

The NI PXIe-5540 integrates low-distortion analog signal generation with high-resolution signal acquisition on a single-slot PXI Express module. Designed primarily for consumer electronics manufacturing, automotive infotainment testing, and electroacoustic R&D, it replaces traditional bulky benchtop audio analyzers with a compact, software-defined modular instrument.

Technical Specifications

Product Advantages

• High-Speed Automated Testing: Leveraging the high-bandwidth PXI Express backplane, data transmission between the module and controller is significantly faster than traditional GPIB or USB benchtop instruments.
• Exceptional Audio Fidelity: Designed with low noise floors and low harmonic distortion, enabling precise measurement of premium audio components, codecs, and amplifiers.
• Compact PXI System Integration: Occupies only one PXI Express slot, allowing users to combine audio test hardware with RF, digital I/O, and DC power supply modules within the same chassis.
• Seamless LabVIEW & TestStand Integration: Native API support drastically reduces software development time for production line automated test sequences.

Important Considerations & Warnings

• Ground Loops & Shielding: High-resolution audio measurements are highly sensitive to ground loops and electromagnetic interference (EMI). Always use high-quality shielded twisted-pair cables and proper single-point grounding.
• Input Voltage Limits: Do not exceed the maximum specified peak input voltage rating on the analog inputs. Connecting high-voltage speaker outputs directly without an appropriate attenuator load can damage the ADC circuitry.
• Chassis Cooling & Slot Power: Ensure the PXIe chassis provides adequate forced-air cooling (front-to-rear or bottom-to-top airflow) to maintain temperature stability for sensitive analog measurements.

Product Applications

• Automotive Electronics: Functional testing of automotive head units, digital amplifiers, emergency call (eCall) audio modules, and microphone arrays.
• Consumer Audio Device Manufacturing: End-of-line production testing for smartphones, smart speakers, wireless headphones, and soundbars.
• Semiconductor Testing: Characterization and automated testing of audio CODECs, DACs, ADCs, and MEMS microphones.
• Electroacoustic Measurements: Frequency response and distortion analysis for acoustic transducers and speaker drivers.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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