preliminary format of data sheet. terms of delivery and rights to change design reserved. ofw e mf page 1 of 4 nov 21, 1997 saw components data sheet b4687 902,5 mhz low-loss filter smd ceramic package qcc8b features l low loss rf filter for gsm mobile phone tx l low insertion attenuation l usable passband 25 mhz l no matching network required for operation at 50 w (input) and 200 w (output) l unbalanced input, balanced output l ceramic package for s urface m ounted t echnology ( smt ) terminals l ni, gold-plated dimensions in mm, approx. weight 0,07 g pin configuration 2 input (50 w) 4 input ground 5 balanced output (200 w) 7 balanced output (200 w) 1,3 to be grounded 6 n.c. 4,8 case - ground filter is reciprocal e lectrostatic s ensitive d evice ( esd ) type ordering code marking and package according to packing according to b4687 B39901-B4687-Z810 c61157-a7-a46 f61074-v8037-z000 maximum ratings operable temperature range t C 20/+ 75 ?c storage temperature range t stg C 40/+ 85 ?c dc voltage v dc 0v source power p s 10 dbm source impedance 50 w
preliminary format of data sheet. terms of delivery and rights to change design reserved. ofw e mf page 2 of 4 nov 21, 1997 saw components data sheet b4687 902,5 mhz low-loss filter characteristics operating temperature range: t = 25 +-2 ?c terminating source impedance: z s = 50 w unbalanced terminating load impedance: z l = 200 w || 80nh balanced min. typ. max. center frequency f c 902,5 mhz (center frequency between 3 db points) maximum insertion attenuation a max 890,0 mhz ... 915,0 mhz 3,0 3,5 db reference level for the following data amplitude ripple in passband (p-p) da 890,0 mhz ... 915,0 mhz 0,8 1,0 db relative attenuation (relative to a max ) a rel 0,0 mhz ... 600,0 mhz 40 75 db 600,0 mhz ... 870,0 mhz 25 35 db 925,0 mhz ... 935,0 mhz 7 15 db 935,0 mhz ... 990,0 mhz 20 27 db 990,0 mhz ... 1500,0 mhz 40 55 db 1500,0 mhz ... 3000,0 mhz 20 39 db
preliminary format of data sheet. terms of delivery and rights to change design reserved. ofw e mf page 3 of 4 nov 21, 1997 saw components data sheet b4687 902,5 mhz low-loss filter characteristics operating temperature range: t = -20 ?c ... 75 ?c terminating source impedance: z s = 50 w unbalanced terminating load impedance: z l = 200 w || 80nh balanced min. typ. max. center frequency f c 902,5 mhz (center frequency between 3 db points) maximum insertion attenuation a max 890,0 mhz ... 915,0 mhz 3,5 4,0 db reference level for the following data amplitude ripple in passband (p-p) da 890,0 mhz ... 915,0 mhz 1,0 1,5 db relative attenuation (relative to a max ) a rel 0,0 mhz ... 600,0 mhz 40 74 db 600,0 mhz ... 870,0 mhz 25 34 db 925,0 mhz ... 935,0 mhz 3,5 10 db 935,0 mhz ... 990,0 mhz 20 26 db 990,0 mhz ... 1500,0 mhz 40 54 db 1500,0 mhz ... 3000,0 mhz 20 38 db
preliminary format of data sheet. terms of delivery and rights to change design reserved. ofw e mf page 4 of 4 nov 21, 1997 saw components data sheet b4687 902,5 mhz low-loss filter transfer function transfer function (wideband)
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