PDM Interface Module i hoʻohana ʻia i ka hoʻāʻo leo o nā microphones MEMS kiʻi kiʻi ʻia

Hoʻohana ʻia ka PDM Interface Module i ka hoʻāʻo leo o nā microphones MEMS digital

E hoʻonui i ka awa hoʻokomo / puka hōʻailona leo

Hiki i ka Pulse modulation PDM ke hoʻouna i nā hōʻailona ma ka hoʻololi ʻana i ka nui o nā pulses, a hoʻohana pinepine ʻia i ka hoʻāʻo leo o nā microphones MEMS digital.

ʻO ka module PDM he module koho o ka mea hoʻoponopono leo, i hoʻohana ʻia e hoʻonui i ka hoʻāʻo hoʻāʻo a me nā hana o ka mea loiloi leo.

E hoʻouna i ka leka uila iā mākou

Hana Nui

Huahana Huahana

nā palena hana

hoʻokō
SNR	< 129 dB (20 kHz BW, ʻaʻohe nalu )
Huina Harmonic Distortion Plus Noise	< -130 dB (20 kHz BW, ʻaʻohe nalu )
Laina Paʻi	<137db(AES 17,CCIR-RMS)
palahalaha	±0.002dB (20Hz ~ 20kHz, 32x )±0.001dB (20Hz ~ 20kHz, 64x, 128x, 256x, 512x)
lākiō	4x, 32x, 64x, 128x, 256x, 512x
Māhele Alignment Ma waena o nā Kanal	Hoʻohālikelike ʻia nā kaha a pau mai ka uaki maʻamau me ka pae like
ʻano hōʻailona	ʻAle hawewe, hawewe ʻālua ʻelua, hawewe ma waho o ka manawa, hōʻailona hawewe huinahā, hōʻailona sweep alapine, hōʻailona walaʻau, waihona WAVE
Laulā alapine hōʻailona	0.1Hz ~ 21kHz

interface
Laʻana helu laʻana	4 kHz ∽216 kHz
wahi uaki bit	128 kHz ∽ 24.576 MHz
oversampling rate	32, 64, 128, 256
ʻano ʻaoʻao	Hoʻokahi ala i luna;alalua lua i lalo
Vdd puka makani	0.0 ∽ 3.6 V, 15 mA kiʻekiʻe loa
Ka pololei ana o ka Voltage	0.001dB
hoʻopololei pae hoʻonaʻauao	0.8 V ∽ 3.3 V