Telephone Ringer
1.
CSC1240A
2.
2.1
DIP8
CSC1240A
2.2
1 2 3 4
LINETE GND CSFG RTOF
5 OUT 6 NC
7 REC 8 LINETE2
14 0510 5807123-5542...
Description
1.
CSC1240A
2.
2.1
DIP8
CSC1240A
2.2
1 2 3 4
LINETE GND CSFG RTOF
5 OUT 6 NC
7 REC 8 LINETE2
14 0510 5807123-5542 14
0510 5803016
3.
3.1
3.2 ,
4.
CSC1240A
Tamb= 25
ICC VAB
VAB
Rthj-amb Tamb Tstg
f = 50Hz f = 50Hz 5s /10s
30 120
200
100 -20~70 -55~150
mA V
V
/W
Tamb= 25 Vs
72
Vs 26 V
IB Vs = 9.3 ~ 25V
1.5 1.8 mA
VON 12 13.5 V
VOFF 7.8 9.3 V
RD 6.4 k
VOUT
Vcc- 5
V
IOUT VCC = 20V RL = 250
70 mA
1
f1
VCC = 26V R1 = 14k V3 = 0V
1.74
2.14 kHz
2
f2
VCC = 26V R1 = 14k V3 = 6V
1.22
1.6 kHz
f1 /f2
1.33 1.43
fSW RL=14 k ,C1=100nF 5.25 7.5 10 Hz
K1
4.1
24
5.
5.1
CSC1240A
5.1 5.2
5.2
34
5.3
6.
CSC1240A
44
...
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