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Part Name
Description
CF8224C View Datasheet(PDF) - Nippon Precision Circuits
Part Name
Description
Manufacturer
CF8224C
Dual-Tone Receiver IC
Nippon Precision Circuits
CF8224C Datasheet PDF : 11 Pages
1
2
3
4
5
6
7
8
9
10
SM8224C
TYPICAL APPLICATION CIRCUIT
Speech
Network
Circuit
R6
1%
C2
5%
C2 R6
5% 1%
R8
R9
1%
1%
Protection
Circuit
L1
VDD
R1
R2
1%
1%
AGND
R4
1%
TIP
C1
5%
VDD
R5
1%
R3
RING
1%
L2
TRQ
C1 R1
R2
5% 1%
1%
GND
DT1
DT2
DTQ
S0
S1
0.1
µ
F
20%
OSCIN VDD
OSCOUT CDET
MODE
CR
TEST DTDET
DOUT STR
R7
1%
VDD
0.1
µ
F
20%
Note : Please set this capacitor
nearby IC pin.
Symbol
Rating
1
Unit
R
1
330
k
Ω
R
2
27
k
Ω
R
3
220
k
Ω
C
1
0.001
µ
F
R
4
47.5
k
Ω
R
5
60.4
k
Ω
R
6
430
+
34
k
Ω
R
7
390
k
Ω
C
2
0.22
µ
F
R
8
52.3
k
Ω
R
9
60.4
k
Ω
1. Circuit values are preliminary.
SEIKO NPC CORPORATION —10
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