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AS3421 Datasheet(PDF) 5 Page - ams AG

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

AS3421 Datasheet(HTML) 5 Page - ams AG

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www.austriamicrosystems.com
Revision 0.90
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AS3421 AS3422
Datasheet - P i n A s s i g n m e n t s
5.1 Pin Descriptions
Note:
Pin description may change in preliminary data sheets.
Table 1. Pin Description for AS3421 AS3422
Pin Name
Pin Number
Type
Description
AS3421
AS3422
IOP1L
24
1
ANA IN
Filter OpAmp1 Input Left Channel
QLINL
2
ANA OUT
Line In Gain Stage Output Left Channel
QMICL
1
3
ANA OUT
MIC GainS tage Output Right Channel
AGND
2
4
ANA IN
Analog Reference
LINL_N
3
5
ANA IN
Negative Line In pin of Left Channel
LINL_P
4
6
ANA IN
Positive Line In pin of Left Channel
LINR_P
5
7
ANA IN
Positive Line In pin of Right Channel
LINR_N
6
8
ANA IN
Negative Line In pin of Right Channel
ANC_CSDA
7
9
MIXED IO
Serial Interface Data
ANC Pin (Enable/Disable ANC function)
MODE_CSCL
8
10
DIG IN
Mode Pin (Power Up/Down, Monitor)
Serial Interface Clock
MICL
9
11
ANA IN
Microphone In Left Channel
MICS
10
12
ANA OUT
Microphone Supply
MICR
11
13
ANA IN
Microphone Input Right Channel
QMICR
12
14
ANA OUT
MIC Gain Stage Output Right Channel
QLINR
15
ANA OUT
Line In Gain Stage Output Right Channel
IOP1R
13
16
ANA IN
FilterOpAmp1 Input Right Channel
QOP1R
14
17
ANA IN
Filter OpAmp1 Output Right Channel
IOP2R
18
ANA IN
Filter OpAmp2 Input Right Channel
QOP2R
19
ANA OUT
Filter OpAmp2 Output Right Channel
VSS
20
SUP IN
VSS supply terminal
HPL
15
21
ANA OUT
Headphone Output Left Channel
HPVSS
22
SUP IN
Headphone amplifier VSS supply terminal
HPR
16
23
ANA OUT
Headphone Output Right Channel
HPVDD
17
24
SUP IN
Headphone VDD Supply
VBAT
18
25
SUP IN
Positive supply terminal of IC
CPP
19
26
ANA OUT
VNEG ChargePump Flying Capacitor Positive Terminal
GND
20
27
GND
VNEG ChargePump Negative Supply
CPN
21
28
ANA OUT
VNEG ChargePump Flying Capacitor Negative Terminal
VNEG
22
29
SUP IO
VNEG ChargePump Output
QOP2L
30
ANA OUT
Filter OpAmp2 Output Left Channel
IOP2L
31
ANA IN
Filter OpAmp2 Input Left Channel
QOP1L
23
32
ANA OUT
Filter OpAmp1 Output Right Channel
VNEG
25
33
SUP IN
Exposed Pad: connect to VNEG or leave it unconnected


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