ST3917B Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
ST3917B Datasheet PDF : 16 Pages
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ST3917A - ST3917B
Figure 6 : Test
VDD
1 C1 ST3917A/B R1 28 1 2 3
FLASH
Row
2 C2
R2 27 4 5 6 TONE/P ULSE
Col
3 C3
R3 26 7 8 9
P AUSE
4 SEL
IPL
mA
5 OSC
3.58MHz
6 P ULSE
Pulse
100kΩ
Tone S W2
7 MODE/PT
8 HKS
S W1
9 GND
RGRX
+
10 RXOUT
11 GRX
10 F
Re
100pF
12 RXIN
3.9kΩ
1 3 IREF
+
100 F
1 4 VCC
R4 25
MU/MFI 24
*0 #
LND
SECRET
VDD 2 3
GDTMF 22
R DTMF
C DTMF
MIC+ 21
MIC- 20
GTX 19
1F
1F
R G TX
100pF
REG 18
LN 17
ILINE 16
ILED
LED 15
470nF
+
4.7 F
RA
LED
RB 130kΩ
IDD
VLN
+
100 F
ILN
600Ω
20Ω
390Ω
3.9kΩ
100nF
ICC
620Ω
390Ω
Figure 7 : Test
VMR
1 C1 S T3917A/B R1 28 1 2 3
FLASH
Row
2 C2
R2 27 4 5 6 TONE/P ULSE
Col
IMR
3 C3
R3 26 7 8 9
P AUS E
4 SEL
470kΩ
5 OSC
3.58MHz 6 P ULSE
P ulse
100kΩ
Tone S W2
7 MODE/PT
8 HKS
S W1
9 GND
RGRX
+
10 RXOUT
11 GRX
10 F
Re
100pF
12 RXIN
3.9kΩ
13 IREF
+
100 F
14 VCC
R4 25
MU/MFI 24
*0 #
LND
SECRET
VDD 2 3
GDTMF 22
R DTMF
C DTMF
MIC+ 21
MIC- 20
GTX 19
1F
1F
R G TX
100pF
REG 18
470nF
+
4.7 F
LN 17
ILINE 16
LED
LED 15
130kΩ
20Ω
390Ω
3.9kΩ
100nF
620Ω
390Ω
11/16
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