UTCMC34018 查看數據表（PDF） - Unisonic Technologies
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UTCMC34018 Datasheet PDF : 14 Pages
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UTCMC34018 LINEAR INTEGRATED CIRCUIT
220kΩ
68kΩ
4.7kΩ
2.7kΩ
S1
T
0.05 µF
Hook
Switch
R
47kΩ 6.8kΩ
0.1 µF
470kΩ
4700pF 4700pF
47kΩ
VB
MIC
2kΩ
Speaker
0.01 µF
0.1 µF
4.7kΩ
Vcc
VB
3.3kΩ
100kΩ
47 µF
3.3kΩ
S2
3
10
13
4
5
11
25
17
16
18
7
27
TXI
MCO XDI
TXO
TLI
CP1 ACF AGC
V+
CS
RLI
RXI
9 MCI
15 SKO
47 µF
UTC MC34018
14 SKG
VLC
VB
Vcc
RTX
RR
RRX RXO
SKI
CP2 XDC TLO RLO
GND
24
21
20
2
1
28
26
19
12
23
6
8
22
VB
Volume 20kΩ
Control
24kΩ
91kΩ
47 µF 47 µF
30kΩ
18kΩ
4.3kΩ
200kΩ 2.2MΩ 2.2MΩ
4.7 µF 4.7 µF
Fig 16 basic Line powered Speakerphone
UTC
MC34018
86
20 21 23
56k
56k
+
Tx/Idle
+
Tx
-
Rx
-
Idle
Fig 17 Digital Transmit/Idle/Receive Indication
UTC
UNISONIC TECHNOLOGIES CO., LTD. 14
QW-R108-006,A
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