** Please add LISO file w/ component values.
I designed the circuit for one of the 11 MHz photodiodes that we're going to install in the 40m Upgrade.
This is a simple representation of the schematic:
gnd # | # Cw2 # | # n23 # | # Lw2 # | # n22 # | # Rw2 # | |\ # n2- - - C2 - n3 - - - - | \ # | | | | |4106>-- n5 - Rs -- no # iinput Rd L1 L2 R24 n6- | / | | # nin - | | | | | |/ | Rload # Cd n7 R22 gnd | | | # | | | | - - - R8 - - gnd # gnd R1 gnd R7 # | | # gnd gnd # # #
I chose the values of the components in a realistic way, that is using part available from Coilcraft or Digikey.
Using LISO I simulated the Tranfer Function and the noise of the circuit.
I'm attaching the results.
I'll post the 55MHz rfpd later. |