82 ?center frequency (fo) is available in a range of 450 to 470khz. the standard tolerance of fo is ?khz. for synthesizers and digital indicators, ?khz tolerance is also available. ?the lpz455jl series, with its two directly coupled elements, has a high degree of selectivity. the series features excellent matching characteristics for ift. ( ) = typical values ecs, inc. international 1105 s. ridgeview, olathe, ks 66062 ?913-782-7787 ?800-237-1041 ?fax 913-782-6991 ?www.ecsxtal.com ceramic filters ceramic filters lpub / lpzjl series ceramic filter operating conditions/electrical characteristics 3db selectivity selectivity insertion part number bandwidth (khz) -9 khz off (db) min. +9 khz off (db) min. loss (db) max. composition LPU455B - (connected with ift) 10 ? 5 (7.5) 3 (5.5) 5 (3) 1 element with ift lpz455jl - (connected with ift) 5.5 ? 18 (20) 18 (20) 7 (3.5) 2 elements direct coupling type figure 1) LPU455B front and side views figure 2) lpz455jl front, side and bottom views features ?am use ? r o h s compliant (note 7 exemption) package dimensions (mm) item \ type lpu b lpz jl ?? ? ?? ? 70 t 115 t 7 t 68 t 84 t 14 t unloaded qu 105 90 tuning capacity 180pf 180pf winding specifications bottom view lpu 455b lpz 455jl figure 4) lpu series measuring circuit figure 3) recommended ift specifications figure 5) lpz series measuring circuit 9 3.5 7.5 2.5 2.5 3.5 connection input ground output 3 3 2 2 1 1 3 4 2 1 6 7.0 0.3 direct coupled 3 direct coupled 4 ground 5 connection output 6 ground 2 input 1 9.0 0.3 3.5 0.5 7.0 0.3 2.5 2.5 3.6 3.6 3 2 1 3 2 1 6 5 4 2.5 2.5 3k rg = 50 ? lpz s.s.g. rf v.m. 3k 1 6 2 3 4 : input : ground : direct coupled : output 1 2 3 5 4 6 5 r1 rg ground input output rg+r1=r2=input/output impedance s.s.g. lpu rf v.m. r2 1 2 3
may 16, 2007 c e r a m i c r e s o n a t o r/f i l t e r application information request attention: all customers from: mike huennekens, director of marketing and oem sales subject: ceramic resonator appli cation information request ecs is requesting that you complete the s ection below that will allow us to determin e if the specific application is suitable f or the ceramic resonator/filters that you have requested. ceramic resonators/filters, both surface mount and through-hole type , are a much different frequency control solution than that of a crystal based device. not only are there ?matching? issues to specific integrated circuits and processors with ceramic based piezoelect ric components but for multiple reasons ceramics are not the most a dvantageous nor robust frequency control solution for certain ap plications. in addition, ecs does not approve the use of its ceramic products in automotive, military, avionics, life sustaining or life su pport systems or any other rela ted medical application. if the customer chooses to use this product in one or more of the noted applications without the written consent of ecs, inc., ecs, inc. shall be held harmless, and given release of lia bility and indemnification fr om claims of any nature. please complete the following and submit this form as soon as possible. ecs part number estimated annual usage has this part already been approved for this application? yes no has this part been ordered previously for this application? yes no end customer application details you must be specific or this may be returned for more information. i certify that the above information is true and correct to the best of my knowledge and acknowle dge that ecs will be held harm less if this item is used in the restricted applications noted above. __________________________________________ ** if this item will be used by a 3 rd party ecs may require company name a form b e completed and signed by all parties. __________________________________________ print your name __________________________________________ title __________________________________________ signature date to be completed by ecs inc., international approved: disallowed: date: ____________________ approved by: ______________________________________ please direct any further inquires to brad slatten at brads@ecsxtal.com or carla williams at carlaw@ecsxtal.com . we thank you for your understanding and patience in this process. ecs, inc. international 1105 south ridgeview road olathe, kansas, 66062 usa www.ecsxtal.com 913-782-7787 1-800-237-1041 fax: 913-78 2 -6991 m ike huennekens director of marketing and oem sales e-mail: mikeh@ecsxtal.com phone: 1-800-237-1041
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