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AS3421 Datasheet(PDF) 10 Page - ams AG

Part # AS3421
Description  Low Power Ambient Noise-Cancel l ing Speaker Dr iver
PDF  61 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3421 Datasheet(HTML) 10 Page - ams AG

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www.austriamicrosystems.com
Revision 0.90
10 - 61
AS3421 AS3422
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 10. Frequency Response 20mW@32
Ω; Line to HPH
Figure 11. Microphone Supply FFT
-0,5
-0,4
-0,3
-0,2
-0,1
0
0,1
0,2
0,3
0,4
0,5
10
100
1k
10k
f [Hz]
-160
-140
-120
-100
-80
-60
-40
-20
0
10
100
1k
10k
f [Hz]
Figure 12. VNEG CP Voltage vs. CP load current with different
VBAT supply voltages
Figure 13. VNEG Efficiency vs.IVNEG with different VBAT supply
voltages
-2
-1,5
-1
-0,5
0
0
25
50
75
100
125
150
175
200
I
VNEG [mA]
1.8V
1.5V
1.0V
-2
-1,5
-1
-0,5
0
0
25
50
75
100
125
150
175
200
I
VNEG [mA]
1.8V
1.5V
1.0V
Figure 14. VMIC_OUT vs. IMIC_OUT
0
0,5
1
1,5
2
2,5
3
3,5
4
0
200
400
600
800
I
MIC_OUT [µA]
VBAT = 1.8V
VBAT = 1.5V



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