The Keysight M9260A is a single-slot 3U PXIe audio analyzer module that integrates two generator channels and two analyzer channels for high-performance audio measurement. Built with super-linear, low-noise ADCs and DACs, the module delivers signal generation purity down to –106 dB THD and supports impedance selections of 50 Ω, 600 Ω, and 1 MΩ to match most audio device outputs. The M9260A features 1 million sample buffers for both arbitrary waveform generation and input acquisition, enabling fast signal processing without phase discontinuity distortion. Its 5x gain amplifiers enhance signal sensitivity while maintaining ultra-low crosstalk of –123 dB across multi-channel measurements.
– Technical Specifications
• Generator Channels: 2 with 1 million sample arbitrary waveform buffer
• Analyzer Channels: 2 with 1 million sample input buffer
• Maximum Frequency: 79.8 kHz
• Maximum Input Amplitude: 46 Vp
• Output Impedance: 50 Ω, 600 Ω
• Input Impedance: 50 Ω, 600 Ω, 1 MΩ
• Signal Purity:
– THD: –106 dB
– THD+N: –103 dB (≥1 Vp, 20 Hz to 20 kHz BW)
– Residual THD: –101 dB at 1 kHz (20 Hz to 20 kHz BW)
– Input Residual Distortion and Noise: –95 dB at 1 kHz (20 Hz to 20 kHz BW)
• Amplitude Accuracy: ±0.58% AC, ±1% DC, ±0.087 dB (±1%) general
• Frequency Flatness: ±0.08 dB (20 Hz to 88 kHz BW, ≤10 Vp)
• Crosstalk: –123 dB (20 kHz BW)
• Phase Noise: –95 dB @ 1 GHz (10 kHz offset)
– Key Features
• 5x gain amplifiers increase signal sensitivity for accurate measurement
• Super-linear converters minimize distortion across audio bandwidth
• Three impedance selections eliminate errors from output mismatch
• SMB male connectors for analog and digital triggering
• IVI-C, IVI-COM, and LabVIEW G driver support
• Includes Soft Front Panel software
– Typical Applications
Audio quality testing for radios, mobile phones, Bluetooth audio devices, broadcasting systems, home theaters, speakers, microphones, ADCs/DACs, audio amplifiers, and automotive infotainment systems.
– Compatibility & Integration
Designed for integration into PXI test systems. Part of the Keysight Radio Test Solution platform.
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