Pin 5 : 10nF capacitor

Capacitor: 10nF
R2: 4.7k ohm + 2.2k ohm+ 100 ohm= 7k ohm
R1: 330 ohm

Frequency: 9.99kHz
Period: 100.141us

+ width: 49.4us
+ duty cycle: 49.34%

– width: 50.74us
– duty cycle: 50.66%