參數(shù)資料
型號(hào): AS3502
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: 圓形連接器
英文描述: Circular Connector; No. of Contacts:3; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:22; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:22-9 RoHS Compliant: No
中文描述: 13位線性編解碼器特征與模擬前端模塊
文件頁(yè)數(shù): 2/29頁(yè)
文件大?。?/td> 364K
代理商: AS3502
REV. M
Page 2
September 1998
AS3502
Pinout Diagramme
1
2
3
4
5
6
7
8
9
10
11
12
13
14
AV
DD
CAP
MIC1+
MIC1-
MIC2-
MIC2+
N.C.
V
REF
DV
DD
POR
SCL
SDI
SDO
RXD
SPK-
SPK+
AV
SS
EP-
EP+
TRO-
TRO+
GNDD
MCLK
SCLK
CS
TXD
TXS
RXS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28 Pin SOIC
AS3502
1
3
6
12
14
16
45
42
40
38
34
6
6
5
5
5
5
5
4
1
2
2
2
2
2
3
3
MIC2-
MIC2+
V
REF
DV
DD
POR
CS
S
S
S
R
R
T
T
S
EP+
TRO-
TRO+
GNDD
MCLK
M
M
C
A
D
S
S
A
S
E
64 pin TQFP
Pin Description
Pin #
1
Name
AVDD
Type
SI
Function
Analogue Positive Supply Voltage Input
2
CAP
AO
Filter Capacitor Output
This pin requires to be connected to an external blocking capacitor of app. 47μF
and is internally connected to the potential divider of the analogue ground genera-
tion circuit.
Differential Microphone 1 Inputs
These two pins are differential inputs to the analogue input multiplexer of the gain
programmable microphone amplifier with an input impedance of approx. 60 k
.
Differential Microphone 2 Inputs
These two pins are differential inputs to the analogue input multiplexer of the gain
programmable microphone amplifier with an input impedance of approx. 60 k
.
3
4
MIC1-
MIC1+
AI
AI
5
6
MIC2-
MIC2+
AI
AI
7
8
N.C.
VREF
AO
Microphone Reference Voltage Output
This pin provides a stabilized reference voltage for an electret microphone of
approx. 2V.
Digital Positive Supply Voltage Input
9
DVDD
SI
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