LM2903YD 데이터 시트보기 (PDF) - STMicroelectronics
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LM2903YD Datasheet PDF : 18 Pages
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LM2903
Figure 20. Time delay generator
Typical application schematics
VC C = +15 V
10 kΩ 15 kΩ
200 kΩ
10 kΩ
V3
10 MΩ
1/2
LM2903
VCC
0t
o
t
A
Input gating signal
VCC
10 kΩ
V(ref.)
V3
VC1 V2
V1
0
t
t0 t1 t2 t3
t4
51 kΩ
1/2
VC1
LM2903
10 kΩ
V2
0.001 μF
10 MΩ
1/2
LM2903
51 kΩ
V1
51 kΩ
10 kΩ
10 MΩ
1/2
LM2903
3 kΩ
V03 VCC
t
o
t3
3 kΩ
VO2 VCC
t
o
t
2
3 kΩ
V
O1
VCC
tt
01
Figure 21. Two-decade high-frequency VCO
VCC
100 kΩ
Frequency control
voltage input
Vcontrol
100 kΩ
10 kΩ
0.1 μF
500 pF
1/ 2
LM2903
3 kΩ
5.1 kΩ
0.01 μF
1/ 2
LM2903
50 kΩ
20 kΩ
20 kΩ
VCC /2
VCC = + 30 V
+250 mV Vcontrol +50 V
700 Hz fo 100 kHz
1/ 2
LM2903
VCC /2
VCC
3 kΩ
Output 1
Output 2
Doc ID 2470 Rev 10
9/18
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