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ADMP441 Datasheet(PDF) 9 Page - Analog Devices

Part # ADMP441
Description  Omnidirectional Microphone with Bottom Port and I2S Digital Output
PDF  16 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADMP441 Datasheet(HTML) 9 Page - Analog Devices

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Data Sheet
ADMP441
Rev. B | Page 9 of 16
SYSTEM MASTER
(DSP, MICROCONTROLLER,
CODEC)
CHIPEN
SCK
WS
L/R
SD
VDD
LEFT
ADMP441
GND GND GND
0.1µF
FROM VOLTAGE
REGULATOR
(1.8V TO 3.3V)
CHIPEN
SCK
WS
L/R
SD
VDD
RIGHT
ADMP441
GND GND GND
0.1µF
100kΩ
VDD
VDD
Figure 9. System Block Diagram
MSB
LSB
LEFT CHANNEL
MSB
LSB
RIGHT CHANNEL
HIGH-Z
HIGH-Z
HIGH-Z
1
2
3
4
24
25
26
32
33
34
35
36
56
57
58
64
WS
SCK (64 ×
fS)
SD (24-BIT)
Figure 10. Stereo Output I²S Format
MSB
LSB
LEFT CHANNEL
HIGH-Z
HIGH-Z
1
2
3
4
24
25
26
32
33
34
35
36
56
57
58
64
WS
SCK (64 ×
fS)
SD (24-BIT)
Figure 11. Mono Output I²S Format Left Channel (L/R = 0)
MSB
LSB
RIGHT CHANNEL
HIGH-Z
HIGH-Z
1
2
3
4
24
25
26
32
33
34
35
36
56
57
58
64
WS
SCK (64 ×
fS)
SD (24-BIT)
Figure 12. Mono Output I²S Format Right Channel (L/R = 1)



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