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AS3412 Datasheet(PDF) 4 Page - ams AG

Part # AS3412
Description  The AS3412 is a speaker driver with Ambient Noise Cancelling
PDF  84 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3412 Datasheet(HTML) 4 Page - ams AG

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Page 4
ams Datasheet
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[v1-00] 2016-Apr-06
AS3412 − Pin Assignment
TRSCL/
BPR
E1
ANA
IN/OUT
Clock input for production trimming. Can be connected to
LINR pin to enable production trimming via 3.5mm audio
jack. Furthermore this pin features also music bypass function
for the right audio channel in off mode operation in order to
replace an external analog switch.
LINR
C2
ANA IN
Line input EQ right channel.
ANC / CSDA
C5
DIG IN
Serial interface data for I²C interface and ANC control to
enable/disable ANC.
MODE /
CSCL
D5
DIG IN
Serial Interface Clock for I²C interface and control pin for
power up/down and Monitor mode.
MICACL
E3
ANA OUT
Microphone preamplifier AC coupling ground terminal. This
pin requires a 10μF capacitor connected to AGND pin.
MICL
D4
ANA IN
ANC microphone input left channel.
MICS
E4
SUP OUT
Microphone Supply output. This pin needs an output
blocking capacitor with 10μF.
MICR
C4
ANA IN
ANC microphone preamplifier input right channel.
MICACR
E5
ANA OUT
Microphone preamplifier AC coupling ground terminal. This
pin requires a 10μF capacitor connected to AGND pin.
QMICR
A5
ANA OUT
ANC microphone preamplifier output right channel.
IOP1R
B4
ANA IN
ANC filter OpAmp1 input right channel.
QOP1R
A4
ANA OUT
ANC filter OpAmp1 output right channel.
HPL
B2
ANA OUT
Headphone amplifier output left channel
HPR
D1
ANA OUT
Headphone amplifier output right channel
VBAT
B1
SUP IN
Positive supply terminal of IC.
CPP
A1
ANA OUT
VNEG charge pump flying capacitor positive terminal.
GND
A2
GND
VNEG charge pump ground terminal. Has to be connected to
AGND pin. For better noise performance a star shaped ground
concept is the preferred option to connect these pins
together.
CPN
B3
ANA OUT
VNEG charge pump flying capacitor negative terminal.
VNEG
A3
SUP OUT
VNEG charge pump output.
QOP1L
D2
ANA IN
Filter OpAmp1 output left channel.
IOP1L
D3
ANA OUT
Filter OpAmp1 input left channel.
QMICL
E2
SUP IN
ANC microphone preamplifier output left channel.
Pin Name
Pin Number
Pin Type
Description



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