Voltage to Frequency circuit struggle

Thread Starter

zazas321

Joined Nov 29, 2015
432
Heey. Can someone help me get the idea how this circuit gives the below wave? As far as I can understand, Voltage Vss goes down to -Vss because it charges up through negative op amp feedback capacitor. Im not quite sure how does it discharge when it fully charges to Vss-
 

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Papabravo

Joined Feb 24, 2006
12,407
Vss is not labeled on the diagram. It is normally understood to be GND. Saying that Vss goes down to -Vss is confusing to say the least.
 

Thread Starter

zazas321

Joined Nov 29, 2015
432
Yeah I am kinda more confused now.. I am not sure if the the op amp reaches the Vin voltage or does it have to reach certain threshold at which will be considered as HIGH or LOW ?
 
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