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AS3412 Datasheet(PDF) 33 Page - ams-OSRAM AG

Part # AS3412
Description  Ultra Small ANC Speaker Driver
PDF  85 Pages
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Manufacturer  AMSOSRAM [ams-OSRAM AG]
Direct Link  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS3412 Datasheet(HTML) 33 Page - ams-OSRAM AG

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[v1-00] 2016-Apr-06
AS3412 − Detailed Description
Start-Up Sequence
The AS3412 has a defined startup sequence. Once the AS3412
MODE pin is pulled high, the device initiates the automatic
startup sequence shown in Figure 40.
Figure 40:
Start-Up Sequence
Start-Up Sequence: This timing diagram shows the startup sequence of the AS3412 in detail.
MODE/CSCL
VOL/CSDA
VBAT
BIAS & OSC ON
VNEG ON
VNEG OK
OTP READ
PWR_HOLD
MICS & OP1 ON
MIC STAGE ON
HPH & LINE ON
PWRUP COMPLETE
FADE IN MIC GAIN
01
23
4
203
405
981
Time Axis
t
[ms]
min. 1.65V
min. 70% VBAT
don‘t care



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