Sep 22, 2008 #1 O olis86 Newbie level 5 Joined Mar 1, 2008 Messages 8 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Iran Activity points 1,322 circuit design i need a 3or2-stage IF amplifier that uses ceramic filters .is any available circuit for this porpose ? thanks for ur time.
circuit design i need a 3or2-stage IF amplifier that uses ceramic filters .is any available circuit for this porpose ? thanks for ur time.
Sep 24, 2008 #2 R rwiggins Member level 4 Joined Apr 30, 2006 Messages 69 Helped 9 Reputation 18 Reaction score 1 Trophy points 1,288 Activity points 1,719 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
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
Sep 28, 2008 #3 M m.salehi Junior Member level 2 Joined Jun 3, 2006 Messages 24 Helped 6 Reputation 12 Reaction score 1 Trophy points 1,283 Activity points 1,403 Re: circuit design olis86 said: i need a 3or2-stage IF amplifier that uses ceramic filters .is any available circuit for this porpose ? thanks for ur time. Click to expand... yes, if ur frequency be lower than 1Mhz, you can use active filters. please find handbook of active filters.
Re: circuit design olis86 said: i need a 3or2-stage IF amplifier that uses ceramic filters .is any available circuit for this porpose ? thanks for ur time. Click to expand... yes, if ur frequency be lower than 1Mhz, you can use active filters. please find handbook of active filters.
Sep 28, 2008 #4 Audioguru Advanced Member level 7 Joined Jan 19, 2008 Messages 9,461 Helped 2,152 Reputation 4,304 Reaction score 2,008 Trophy points 1,393 Location Toronto area of Canada Activity points 59,758 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.
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.