Description
Application Scenarios
• Audio signal analysis: amplitude, frequency, duty cycle, THD, THD+N, etc.
• Analog audio testing: headphone, microphone, loudspeaker, crosstalk, etc.
• Digital audio testing: PDM/TDM testing of tablets, laptops, and wearable.
Specifications
| Model | SG2700-AU01PC-D | SG2700-AU02PC-B | SG2700-AU05PC-B |
| Channel | 1× Single-Ended Input 1× Single-Ended Output | 1× Differential Input 1× Differential Output | 1× Single-Ended Input/Output 2× Differential Input/Output |
Audio Analyzer
| Input Impedance | 10 TΩ | 10 TΩ | 1 MΩ | |
| Input Range | 3.5 Vrms | 2 Vrms | Single-Ended: 20 Vrms Differential: 35 Vrms | |
| Coupling | DC | AC | DC | |
| Bandwidth | 20 kHz | 75 kHz | Single-Ended: 300 kHz – 1 MHz Differential: 20 kHz | |
| ADC Resolution | 24 Bits | 24 Bits | Single-Ended: 12 Bits Differential: 24 Bits | |
| Sampling Rate | ≤ 192 kHz | ≤ 192 kHz | Single-Ended: ≤ 40 MHz Differential: ≤ 192 kHz | |
| THD Measurement | ≤ -106 dB (2 Vrms @ 1 kHz) | ≤ -106 dB (2 Vrms @ 1 kHz) | ≤ -95 dB (2 Vrms @ 1 kHz) | |
| THD+N Measurement | ≤ -82 dB (2 Vrms @ 1 kHz) | ≤ -83 dB (2 Vrms @ 1 kHz) | ≤ -82 dB (2 Vrms @ 1 kHz) | |
| Measurement Accuracy | Voltage | 100 mVrms: ± (1% of Reading +0.005% of F.S.) | 100 mVrms: ± (1% of Reading +0.02% of F.S.) | 35 Vrms: ± (1% of Reading +0.2% of F.S.) |
| 3.5 Vrms: ± (0.3% of Reading +0.005% of F.S.) | 2 Vrms: ± (0.7% of Reading +0.005% of F.S.) | 20 Vrms: ± (0.7% of Reading +0.06% of F.S.) | ||
| Frequency | ± 55 ppm | ± 55 ppm | ± 55 ppm | |
Audio Generator
| Output Impedance | Low-Z | Low-Z | Low-Z | |
| Output Range | 2.3 Vrms | 2.3 Vrms | 2.3 Vrms | |
| Coupling | AC | AC | AC | |
| DAC Resolution | 24 Bits | 24 Bits | 24 Bits | |
| DAC Refresh Rate | ≤ 192 kHz | ≤ 192 kHz | ≤ 192 kHz | |
| Sine Frequency Range | 10 Hz – 55 kHz | 10 Hz – 50 kHz | 10 Hz – 50 kHz | |
| THD Output | ≤ -104 dB (1 Vrms @ 1 kHz) | ≤ -106 dB (1 Vrms @ 1 kHz) | ≤ -106 dB (1 Vrms @ 1 kHz) | |
| THD+N Output | ≤ -102 dB (1 Vrms @ 1 kHz) | ≤ -102 dB (1 Vrms @ 1 kHz) | ≤ -102 dB (1 Vrms @ 1 kHz) | |
| Output Accuracy | Voltage | ≤ 100 mVrms: ± 0.5% of Reading + 0.005% of F.S. | ≤ 100 mVrms: 0.1% of Reading + 0.001% of F.S. | ≤ 100 mVrms: 0.1% of Reading + 0.001% of F.S. |
| ≤ 3.5 Vrms: ± 0.1% of Reading + 0.005% of F.S. | ≤ 3.5 Vrms: 0.1% of Reading + 0.005% of F.S. | ≤ 3.5 Vrms: 0.1% of Reading + 0.005% of F.S. | ||
| Frequency | ± 10 ppm | ± 10 ppm | ± 10 ppm | |
| Digital Interface | I²S, I²C | I²S, I²C | Parallel Interface, I²S, I²C | |
