Circuit for 2/3 stage IF amplifier that uses ceramic filters

[olis86]

circuit design

i need a 3or2-stage IF amplifier that uses ceramic filters .is any available circuit for this porpose ?
thanks for ur time.

 

[rwiggins]

circuit design

Maybe these will help:
http://www.rfdesignline.com/1999061...MMKQQSNDLQSKIKCJUNN2JVN?printableArticle=true
http://www.geocities.com/rbrucecarter/ceramic_filter.htm
http://www.allaboutcircuits.com/vol_3/chpt_9/6.html

 

[m.salehi]

Re: circuit design

i need a 3or2-stage IF amplifier that uses ceramic filters .is any available circuit for this porpose ?
thanks for ur time.

yes, if ur frequency be lower than 1Mhz, you can use active filters. please find handbook of active filters.

 

[Audioguru]

circuit design

455kHz ceramic filters are available for AM radios and for dual conversion narrow-band FM radios.
10.7MHz ceramic filters are available for FM broadcast band radios.

The lousy old TDA7000 "radio in one IC" used 70kHz active filters in its IF.