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L3914AN データシートの表示(PDF) - STMicroelectronics
部品番号
コンポーネント説明
メーカー
L3914AN
SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION
STMicroelectronics
L3914AN Datasheet PDF : 15 Pages
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15
TEST CIRCUITS
(continued)
Figure 7.
470nF
2.25K
GDTMF
22
IDD
4.0V
22nF
VMF
RDTMF
VDD
23
470K
PULSE
6
3.58MHz
OSC
5
SW2 MODE
PULSE
7
TONE
100K
/PT
SW1
HKS
8
GND
9
300
Ω
10
µ
F
Re
RXOUT
10
100K
GRX
11
RGRX
Vear
IREF
13
3.6K
VCC
14
100
µ
F
RGIN
12
620
Ω
100nF
Figure 8.
470nF
2.25K
GDTMF
22
IDD
22nF
4.0V
470K
3.58MHz
SW2
PULSE
TONE
100K
SW1
R
P
Re
10
µ
F
RGRX
Vear
3.6K
100
µ
F
VDD
23
PULSE
6
OSC
5
MODE
7
/PT
HKS
8
GND
9
RXOUT
10
GRX
11
IREF
13
VCC
14
RGIN
12
620
Ω
Vinp
100nF
L3914A - L3924A - L3934A
C4
4
C3
3
C2
2
C1
1
28
R1
R2
27
R3
26
R4
25
R5
24
VLN
GDTMF=20log
VMF
Vear
CDTMF=20log
VLN
1 2 3 FLASH
4 5 6 PROG
7 8 9 P/LND
*
0 # HOLD
E1 E2 E3 MEM
MIC+
21
2.2K
1
µ
F
MIC-
20
1
µ
F
GTX
19
RGTX 88K
4.7
µ
F
REG
VLN
18
LN
17
LED
15
ILED
16
ILINE 390
Ω
130K
3.9K
100
µ
F
IL
20
Ω
390
Ω
600
Ω
D95TL173
C4
4
C3
3
C2
2
C1
1
R1
28
R2
27
R3
26
25
R4
R5
24
Vear
GRX=20log
Vinp
NRX with Vin=0
1 2 3 FLASH
4 5 6 PROG
7 8 9 P/LND
*
0 # HOLD
E1 E2 E3 MEM
MIC+
21
2.2K
1
µ
F
MIC-
20
1
µ
F
GTX
19
RGTX
REG
4.7
µ
F
VLN
18
LN
17
LED
15
ILED
16
ILINE
390
Ω
130K
3.9K
100
µ
F
IL
20
Ω
390
Ω
D95TL167
11/15
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