73M2901-32I-3 데이터 시트보기 (PDF) - TDK Corporation
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73M2901-32I-3 Datasheet PDF : 17 Pages
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73M2901/3.3V
Advanced Single
Chip Modem
RXA
TXAP
TXAN
R3
R4
21K
5.1K
R1
T1
475
C1
0.033m
Midcom 671-8005
Recommended Line Interface
Telephone
Line
VCC
+
C2
10uF
JP1
10
To
--> RS232
9
8
7
level shifter
6
--> Host
5
microprocessor
4
3
2
1
HEADER 10
VCC
GND
R1
10K
TTL V24
signals
interface
R11 0R
GND
7
8
9
4
10
32
31
30
27
1
28
DCD
DSR
CTS
RI
RTS
DTR
RXC
RXD
TXD
ASRCH
TXC
Y1
11.0592 MHZ
C1
27PF
C3
33PF
VCC
GND
U1
2901_P32
GND
GND
VPA
VNA
VREF
VBG
HBDEN
15
21
18
19
14
RXA
TXAP
TXAN
20
17
16
VPA
C4 100nF
C5 100nF
VNA
VCC
R12
R13
0R
nc
R2 21K
R3 5.1K
R4 470
C7
.033UF
3 T1 2
SEC
PRI
4
1
671-8005
Recommended Schematics Arrangement
11
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