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PDM Interface Module siv hauv kev sim suab ntawm cov MEMS microphones

Nthuav audio analyzer input/output signal port

 

 

Pulse modulation PDM tuaj yeem xa cov teeb liab los ntawm kev hloov kho qhov ceev ntawm pulses, thiab nws feem ntau siv hauv kev sim suab ntawm cov MEMS microphones.

Lub PDM module yog ib qho kev xaiv module ntawm lub suab analyzer, uas yog siv los nthuav qhov kev ntsuam xyuas interface thiab kev ua haujlwm ntawm lub suab ntsuas.


Main Performance

Khoom cim npe

kev ua haujlwm tsis zoo

kev ua tau zoo
SNR <129 dB (20 kHz BW, tsis muaj nthwv dej)
Tag nrho Harmonic Distortion Plus Noise <-130 dB (20 kHz BW, tsis muaj yoj)
Dynamic Range <137db(AES 17,CCIR-RMS)
flatness ± 0.002dB (20Hz ~ 20kHz, 32x) ± 0.001dB (20Hz ~ 20kHz, 64x, 128x, 256x, 512x)
piv 4x, 32x, 64x, 128x, 256x, 512x
Phase Alignment ntawm Channel Tag nrho cov channel raug coj mus kuaj synchronously los ntawm ib lub moos uas muaj tib theem
hom teeb liab Sine yoj, dual-frequency sine yoj, tawm-ntawm-theem sine yoj, square yoj teeb liab, zaus cheb teeb liab, suab nrov, WAVE ntaub ntawv
Lub teeb liab ntau zaus 0.1Hz ~ 21kHz
interface
Tus nqi piv txwv 4 kHz ∽216 kHz
bit moos range 128 kHz ∽ 24.576 MHz
oversampling tus nqi 32, 64, 128, 256
ntug hom Ib channel nce;dual channel down
Vdd tso zis voltage 0.0 ∽ 3.6 V, siab tshaj 15 mA
Kev ntsuas qhov ntsuas qhov tseeb 0.001dB
logic theem interface 0.8V ∽ 3.3V

  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb