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PTI Audio Test Module is mainly used for testing microphones and speakers of audio products such as consumer electronics and automotive electronics, such as mobile phones, wireless headset, speakers, players, power amplifiers, home theaters, televisions, TV boxes, and automotive multimedia hosts. Support for analog/digital input and analog audio output, up to 192K digital sampling rate, and powerfully test functions, including THD+N, SNR, PDM, RMS, etc.
| ① 12V Power port | ② LAN port | |
| ③ Digital audio input | ④ Adress switch | |
| ⑤ Audio output port | ⑥Analog MIC test port |
Analog input：2 channels Audio signal input
Analog output：1 channel Audio signal output
Data output format：I2S
Digital audio PDM：1 channel PDM input
Input impedance：Hi-Z
Input range：0-2 Vrms
Input bandwidth：20 kHz
Sampling frequency：≤192 kHz
ADC resolution：24 bits
THD measurement：-105 dB (2 Vrms@1 kHz sine wave)
THD+N measurement：-99 dB (2 Vrms@1 kHz sine wave)
Digital audio PDM：-106 dB (@1 kHz sine wave)
THD+N measurement：-106 dB (@1 kHz sine wave)
Frequency measurement accuracy：±3 ppm
Sine frequency range：20 Hz~10 kHz
Output range：0-2.3 Vrms (without DC offset)
DAC sampling rate：≤192 kHz
DAC resolution：24 Bit
Output THD：-107.3 dB(3 Vpp @1 kHz)
Output THD+N：-102.1 dB (2 Vpp @1 kHz)
Amplitude accuracy：（1 KHz） ±1‰ dB
Output frequency accuracy：±3 ppm
PDM data rate：6.144 MHz
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