Keysight U8903B Performance Audio Analyzer
Description
Accessories
Files/Downloads
Benefits of the U8903B Multi-Function Audio Measurement Instrument
- Extremely low residual distortion of <–110 dB.
- Two-channel measurements, bandwidth DC...10 Hz can be expanded to 1.5 MHz.
- Four- and eight-channel upgrades.
Keysight U8903B Performance Audio Analyzer
The Keysight U8903B is an audio analyzer to measure and quantify analog and digital audio signal quality with a single device. The U8903B combines a high-quality signal source with a high performance analyzer. It can measure frequency, level/amplitude, distortion, noise, SNR (signal-noise-ratio), sweep, harmonics, SINAD, and more. It also provides measurements like an oscilloscope or spectrum analyzer. The U8903A is the ideal tool for design and test of all kinds of devices with speakers, earphone jacks or microphone.
- High-resolution, 2-channel audio analyzer.
- Low residual distortion of less than —110 dB.
- Wide measurement bandwidth: Measure at DC or from 10 Hz to 96 kHz or 1.5 MHz (with wide bandwidth option N3431A).
- Flexible configuration with digital options and up to eight analog analyzer channels.
- Characterize signal-to-noise ratios, cross talk, and more.
- Test sequence function to implement automatic test.
- Speech and audio quality measurements with POLQA (perceptual objective listening quality assessment) and PESQ (perceptual evaluation of speech quality) standards.
- Digital audio interface options (AES3/SPDIF or DSI).
- Logic level range of 1.2 V to 3.3 V (DSI)
Model Overview
| Model | U8903B | |
| Basic Versions, bundles and upgrades | U8903B-STD | Performance audio analyzer; 2 channels |
| U8903B-201 | Performance audio analyzer bundle with 4 analog analyzer channel, digital audio (AES3/ SPDIF and DSI digital audio) | |
| U8903B-AN4 | Analog analyzer; 4 channels upgrade | |
| U8903B-AN8 | Analog analyzer; 8 channels upgrade | |
| U8903B-DGT | Digital audio card upgrade | |
| Analog generator | Connection type | XLR (balanced), BNC (unbalanced), BNC (common mode) |
| Grounding | True floating or grounded | |
| Waveform | Sine, dual sine, variable phase, square, SMPTE IMD, DFD, noise, arbitrary, multi-tone | |
| Frequency | 5 Hz to 80 kHz | |
| Output | 0...16 VRMS (balanced), 0...8 VRMS (unbalanced) | |
| Residual THD+N at 1 kHz, 1 VRMS (20 Hz...20 kHz bandwidth) | <-108 dB, typ., <-110 dB (at 23°C ±5°C) <-100 dB (0...+55°C) | |
| Residual THD | <-87 dB | |
| WAV file playback | Up to 5 minutes depending on waveform file | |
| Analog analyzer | Frequency range | DC or 10 Hz...96 kHz or 1.5 MHz (with wide bandwidth option N3431A) |
| Measurement range | <1 µV to 300 VRMS | |
| Connection type | XLR (balanced), BNC (unbalanced), BNC (common mode) | |
| Residual THD+N at 1 kHz, 1 VRMS (20 Hz...20 kHz bandwidth) | <-108 dB, typ. <-110 dB (at 23°C ±5°C) <-100 dB (0...+55°C) | |
| Residual noise (20 Hz...20 kHz bandwidth) | ≤1.3 µVRMS | |
| Digital audio | AES3/SPDIF data format | Consumer or professional |
| DSI data format | I²S, left justified, right justified, DSP | |
| Logic level (DSI) | 1.2...3.3 V | |
| Audio bits | 8 to 24 bit | |
| Input/output level (AES3/ SPDIF) | Balanced: 0.3...5.1 VPP Unbalanced: 0.3...2.5 VPP | |
| Connector type | AES3/SPDIF: XLR (balanced), BNC (unbalanced), TOSLINK (optical) DSI: 25-pin male D-sub connector | |
| Generator | Frequency | 5 Hz to 0.45 sampling rate (Fs) |
| Residual THD+N | ≤-140 dB | |
| Analyzer | Frequency | 5 Hz to 0.45 sampling rate (Fs) |
| AC level range | <-120 dBFS to 0 dBFS | |
| Residual THD+N | ≤-140 dB | |
| Interfaces | LAN/Ethernet, USB, GPIB/IEEE488 | |
| Dimensions (mm) | 426 x 425 x 134; 8.5 kg | |
Options, Accessories and Upgrdes for the U8903B
| Model | Description |
| U8903A-101 | Cable, male BNC to male BNC, 1.2 m, jade gray |
| U8903A-102 | Cable, male BNC to male RCA, 2 m, black |
| U8903A-103 | Cable, male XLR to female XLR, 2 m, black |
| U8903A-107 | Cable, male XLR to 2x male BNC (analyzer), 0.26 m |
| U8903A-108 | Cable, female XLR to 2x male BNC (generator), 0.26 m |
| U8903A-109 | BNC accessory kit |
| U8903A-908 | Rackmount kit - 132.6H without handle |
| U8903B-105 | Digital serial interface cable |
| U8903B-1A7 | Calibration + uncertainties + guardbanding (not accredited) |
| U8903B-A6J | ANSI Z540-1-1994 calibration |
| U8903B-AN4 | Analog analyzer; 4 channels |
| U8903B-AN8 | Analog analyzer; 8 channels |
| U8903B-DGT | Digital audio card |
| U8903BU-DGT | Digital audio card upgrade for U8903B performance audio analyzer, includes installation, calibration, 1 year warranty |
| N3431A | Wide bandwidth option - 1.5 MHz (fixed perpetual license) |
| N3432A | POLQA measurement software (fixed perpetual license) |
| N3433A | POLQA & PESQ measurement software (fixed perpetual license) |
| N3434A | AES3/SPDIF and DSI digital audio (fixed perpetual license) |
| N3435A | AES3/SPDIF digital audio (fixed perpetual license) |
| N3436A | DSI digital audio (fixed perpetual license) |
| 11500A | Cable assembly, type-N (male) to type-N (male), DC...6.0 GHz |
Agilent's Electronic Measurement Group is now Keysight Technologies.
