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MC145442DW 데이터 시트보기 (PDF) - Motorola => Freescale
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MC145442DW
Single-Chip 300-Baud Modem
Motorola => Freescale
MC145442DW Datasheet PDF : 12 Pages
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0.1
µ
F
DTMF
INPUT
RDSI
20 k
Ω
10
Ω
TIP
6
VDD
20
CDSI
TLA
RTLA
1
0.1
µ
F
17
15
DSI
TxA
RxA2
RTx
10
µ
F
+600
Ω
MC145442/3
16
RxA1
9
Xin
3.58
8
MHz
Xout
CD
TxD
RxD
10 k
Ω
RING
*
VDD
0.1
µ
F
0.1
µ
F
CFB
18
Exl
10
FB
0.1
µ
F 19
VAG
CDT
4
CCDT
0.1
µ
F
SQT
10 k
Ω
LB
10 k
Ω
GND
12
MODE
CDA
7
CCDA
0.1
µ
F
0.1
µ
F
+5V
0.1
µ
F
17
19
1
VDD
C1+
3
C1–
11
DI2
VCC
EIA–232–D
20
DB–25
C1+
CONNECTOR
18
C1–
MMBZ15VDLT1 X 3
8
15
DO1
MC145407
Tx2
10
2
13
DI1
Rx1
6
3
TxEN
8
Tx1
STBY
Rx2
7
7
Rx3
9
GND
VSS
2
4
* Line Protection Circuit
Figure 7. Typical MC145442/MC145443 Applications Circuit
MC145442
•
MC145443
10
MOTOROLA
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