Question: A 555 timer is connected in the astable mode as shown in Figure 15.41. Design the circuit such that the frequency of oscillation is (f_{o}=80

A 555 timer is connected in the astable mode as shown in Figure 15.41. Design the circuit such that the frequency of oscillation is $f_{o}=80 \mathrm{kHz}$ and the duty cycle is 60 percent. Let $R_{A}=25 \mathrm{k} \Omega$.

+Vcc RA +Vcc Reset Discharge ww RB 555 Output Threshold Trigger +

+Vcc RA +Vcc Reset Discharge ww RB 555 Output Threshold Trigger + Ground VC 10 Figure 15.41 Astable multivibrator 555 circuit

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