Hello,
I would need your help in understand the working of this circuit [attached]. Initailly i will mention my understanding , correct me if i am wrong and finally i will ask question. My understanding: "A modulated signal is capacitively coupled using C2 =1pF , a MOSFET amplifier with current source load amplify and retrieve the orignal signal from modulated signal which is finally inverted using inverter" Now i would like to know:
1)What if i increase or decrease the coupling capacitor ? what will be its effect on siganl and on overall system? How to calculate it?
2)How MOSFET amplifier with current source load and capacitor C1 demodulate the signal? What will be the effect if we increase/decrease current source load (Id current)?
3) What is the role of C1 ? how to calculate its value ?
Thanks.
I would need your help in understand the working of this circuit [attached]. Initailly i will mention my understanding , correct me if i am wrong and finally i will ask question. My understanding: "A modulated signal is capacitively coupled using C2 =1pF , a MOSFET amplifier with current source load amplify and retrieve the orignal signal from modulated signal which is finally inverted using inverter" Now i would like to know:
1)What if i increase or decrease the coupling capacitor ? what will be its effect on siganl and on overall system? How to calculate it?
2)How MOSFET amplifier with current source load and capacitor C1 demodulate the signal? What will be the effect if we increase/decrease current source load (Id current)?
3) What is the role of C1 ? how to calculate its value ?
Thanks.
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