
MC14106B
t1+t2
R
t1
t2
C
VT )
* t1 [ RC ln VT–
VDD – VT–
* t2 [ RC ln VDD – VT)
ƪǒ Ǔǒ Ǔƫ 1f [ RC ln
VDD – VT–
VDD – VT)
VT )
VT –
*t1 + t2 & tPHL + tPLH
Figure 5. Astable Multivibrator
R
A
Vin
Vout
C
VDD
Vin VT+
VSS
VDD
VT+
A
VSS
VDD
Vout VT+
VSS
Useful in discriminating against short pulse durations.
Figure 6. Integrator
C
Vin
R
Vin
+ EDGE
- EDGE
- EDGE
+ EDGE
VDD
tw
VDD
tw = RC ln VT+
Useful as an edge detector circuit.
Figure 7. Differentiator
C
Vin
R
C
R
C
R
Figure 8. Positive Edge Time Delay Circuit
http://onsemi.com
6