The low pass filter 1, wherein {HEAD ~ said first capacitor} is a parasitic component of {TAIL ~ said transistor} 
The low pass filter 1 , wherein { HEAD ~ said first capacitor } is a parasitic component of { TAIL ~ said transistor }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL