2001. 9. 13 1/2 saw filter technical data KF914V specifications for saw filter revision no : 4 sc-44 a b c f e d 1.35 0.23 3.8 0.15 3.8 0.15 1.27 typ. 0.6 typ. 2.54 typ. dim millimeters g h 1.80 typ. 1.00 typ. function ground signal signal 1 pin no 3 6 4 2 5 r r0.15 typ. a b c g h d e f r r 1 2 36 5 4 r + _ + _ + _ band pass filters for rf circuits of cordless phone (ct-1) high stability and reliability with good performance and no adjustment. wide and sharp pass band characteristics. low insertion loss and deep stop band attenuation for interference. maximum ratings electrical characteristics (temperature 20 2 , humidity 65 5%) item symbol rating unit input signal level is max 10 dbm dc permissive voltage v dc 0 v operating temperature range t opr -10 +60 storage temperature range t stg -40 +85 k c e marking lot no. items symbol test condition min. typ. max. unit nominal center frequency fo - - 914.5 - mhz bandwidth bw 3db - f o 1.0 - - mhz insertion loss il pass f o 1.0mhz - 3.0 4.0 db ripple level a rip f o 1.0mhz - - 1.5 db rejection level il stop f o -45 f o -40mhz 45 49 - db f o -23 f o -20mhz 30 50 - f o +20 f o +23mhz 20 25 - f o +40 f o +45mhz 35 42 - input/output impedance z i (z o ) - - 50 +10nh - -
2/2 KF914V r s rr r l det ssg det ssg r s r l i z z o ll 3 2 4 3 1 : input ,, 6 : ground , 2 5 6 : output 5 1 4 z i z o r s , r l : 50 (internal impedance of source and load) r : 0 z i (z o )=r s (r l )+r measurement circuit reference level test circuit test circuit 2001. 9. 13 revision no : 4 r s , r l : 50 (internal impedance of source and load) l : 10nh z i (z o )=r s (r l )+r l
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