Hello i am having trouble understanding how to calculate the resistance for the low pass filter. Mainly since i dont understand if i have to take in the other ressitors. When calculating can i just analyse them separately is the red lines show and break them up into sections? Also for the high pass, to calculate R do i have to take in the resistor 3 value or can i ignore that and focus on R1+R2 for Req? I need the 2 reistors so that the input voltage is dropped so that the output voltage 1 is less than a certain voltage as this voltage then feeds into an amp.
Is there a better way to implement the low pass after the highpass or not? Need the highpass to block dcbias and the voltage divider is used to keep voltage under a certain amount due to vout1 requiring a certain value.
Basically:Can i just find the values for the high pass as one section and ignore R3 for Req for that 1st section, then find the low pass filter components so that the output voltage of that can be fed to an amp.
For the low pass filter can i calculate it from using R1 and R2 or not. If so please show how you did this.