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Module Interface Module na PDM da aka yi amfani da shi a gwajin sauti na microphones MEMS na dijital

Fadada tashar siginar shigarwa/fitarwa mai nazartar sauti

 

 

Pulse modulation PDM na iya watsa sigina ta hanyar daidaita yawan bugun bugun jini, kuma ana amfani dashi sau da yawa a gwajin sauti na microphones MEMS na dijital.

Tsarin PDM tsarin zaɓi ne na mai nazarin sauti, wanda ake amfani da shi don faɗaɗa ƙirar gwaji da ayyukan mai nazarin sauti.


Babban Ayyuka

Tags samfurin

sigogin aiki

yi
SNR <129dB (20 kHz BW, babu raƙuman ruwa)
Jimlar Harmonic Distortion Plus Surutu <-130 dB (20 kHz BW, babu igiyar ruwa)
Rage Rage <137db(AES 17, CCIR-RMS)
flatness ± 0.002dB (20Hz ~ 20kHz, 32x) ± 0.001dB (20Hz ~ 20kHz, 64x, 128x, 256x, 512x)
rabo 4x, 32x, 64x, 128x, 256x, 512x
Daidaita Mataki Tsakanin Tashoshi Dukkan tashoshi ana yin samfuri tare da juna daga agogo na gama gari tare da lokaci iri ɗaya
nau'in sigina Wave na sine, igiyar ruwa mai mitoci biyu, igiyar sine mai fita daga lokaci, siginar raƙuman murabba'i, siginar share mitar, siginar amo, fayil WAVE
Mitar sigina 0.1 Hz ~ 21 kHz
dubawa
Samfurin ƙimar ƙimar 4 kHz ∽216 kHz
agogon bit 128 kHz ∽ 24.576 MHz
oversampling kudi 32, 64, 128, 256
yanayin gefen Tashoshi guda ɗaya;dual channel down
Wutar fitarwa ta Vdd 0.0 ∽ 3.6 V, Matsakaicin 15 mA
Daidaiton Ma'aunin Wuta 0.001dB
dabaru matakin dubawa 0.8 V ∽ 3.3 V

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