455khz Ceramic Filter Circuit

Murata ceramic filters 455 khz signal conditioning are available at mouser electronics.

455khz ceramic filter circuit.

Murata makes the cerafil r line of ceramic filters some of which are designed for use at 455khz and 450khz. A search of ebay for filter if 455 turns up units like the avx kyocera kbf455r which may be suitable for your project. It filter away almost everything except 455khz 10khz. Signal conditioning 455khz.

And it is here the ceramic filter comes handy. Background the ceramic componets are made of high stability piezoelectric ceramics that functions as a mechanicalresonator. Mouser offers inventory pricing datasheets for murata ceramic filters 455 khz signal conditioning. The frequency is primary adjusted by the size and thikness of the ceramic element.

Typical application includes tvs vcrs telphones remote controls and radios. What we want is only the 455khz signal. The 35pf variable capacitor is a panel mount type and is mounted on the front panel. Simplest 455 khz oscillator uses only three parts negative resistance ceramic filter oscillator ceramic resonator oscillator rf oscillator with three parts the simplest oscillator ever if anyone can successfully disprove this claim i ll gladly retract it.

For example the sfpla450kd1a b0 has a 6db bandwidth of 10khz designed for use with am stereo receivers. The local oscillator is set to 100 455khz and when the mixer mix the rf 100mhz with the osc 100 455mhz the product will be 455khz and lots of other frequency products. Hartley circuit this is a hartley oscillator circuit using a 455khz if can. I used 50 ohm miniature coax cable to wire the capacitor to the front panel.

Ltm450htu filter cfum455ht murata equiv 6 khz total bw 450khz 4 leg new h131 3 00 ltm455bw cfwm455b murata equiv filter 30 khz total bw 455khz 5 leg h143. The murata ht series is a bit wider and is defined as not less than 6 khz in reality these are measured as 7 5 to 8 7 khz exactly. In reality the filters from the it series are all around 6 3 to 7 2 khz at 6 db. Ceramic filter and resonators.