音频分析模块(插入式)

音频分析模块(插入式)

• 24 位分辨率

• 192 KHz 采样率

• 支持多种模拟/数字音频信号的输入/输出

描述

• 音频信号分析:幅值、频率、占空比、THD、THD+N 等指标

• 模拟音频测试:耳机、麦克风、扬声器测试,串扰测

• 数字音频测试:平板电脑、笔记本电脑、可穿戴设备的 PDM/TDM 测试

型号 CMI-5201 CMI-5202
Channel 1× Single-Ended Input           1× Single-Ended Output 1× Differential Input             1× Differential Output

音频综测仪

Input Impedance 10 TΩ 10 TΩ
Input Range 3.5 Vrms 2 Vrms
Coupling DC AC
Bandwidth 20 kHz 75 kHz
ADC Resolution 24 Bits 24 Bits
Sampling Rate ≤ 192 kHz ≤ 192 kHz
THD Measurement ≤ -106 dB (2 Vrms @ 1 kHz) ≤ -106 dB (2 Vrms @ 1 kHz)
THD+N Measurement ≤ -82 dB (2 Vrms @ 1 kHz) ≤ -83 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.)
3.5 Vrms: ± (0.3% of Reading + 0.005% of F.S.) 2 Vrms:± (0.7% of Reading + 0.005% of F.S.)
Frequency ± 55 ppm ± 55 ppm

Audio Generator

Output Impedance Low-Z Low-Z
Output Range 2.3 Vrms 2.3 Vrms
Coupling AC AC
DAC Resolution 24 Bits 24 Bits
DAC Refresh Rate ≤ 192 kHz ≤ 192 kHz
Sine Frequency Range 10 Hz – 55 kHz 10 Hz – 50 kHz
THD Output ≤ -104 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)
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.
≤ 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