1
vote
3answers
437 views

How to implement and tune a LC band-stop filter?

I have designed a simple LC band stop filter with a center frequency of 433MHz. The schematic looks like: The caps are NP0 0603 and the inductors are from the Coilcraft 0603HP series. The values ...
4
votes
1answer
314 views

Inductive choke with bypass capacitors?

I've been looking at a few power input circuits and quite a few of them suggest an inductive choke with a large bypass capacitor followed by smaller bypass capacitors. In theory this is what I ...
4
votes
1answer
434 views

Data sheet inductance (R/A ?)

I have to implement a LC filter for a FT232H and its datas sheet (here) gives an example circuit (Fig. 6.1 VPLL- & VPHY-circuit). Strangely though a core-inductor is stated to be a 600R/0.5A.! ...
5
votes
2answers
813 views

Shall I use a choke or a bead to filter analog power supply?

Often I have a 3.3V or 5V mixed-signal circuit with a microcontroller running in the 10 MHz range and some analog circuitry, e.g. audio or analog sensor signals, powered from a wall-wart style supply ...