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| crystal filter qf 2.5-u0290/04 application limiting v a lues unit value center frequency fo mhz 2.5 i n sert ion loss db 4.0 pass band at 6.0 db khz +<0.3...>3.04 ripple in pass band fo + 0.59...2.375 khz db 2.0 at ?10...+ 55c f o + 0.55...2.5 k h z db 2.0 stop band attenuation fo - 0.4 khz; fo + 7.5 khz db 40 alternate attenuation db > 60 (except spurious ) input power mw < 10 terminating impedance z r1 || c1 ohm/pf 600 || 0 r2 || c2 ohm/pf 600 || 0 operating temp. range c -25... +70 ? 8 pol filter ? i.f.- filter ? use in mobile and stationary transceivers characteristics qf 2.5-u0290/04 pass band stop band pin connections: 1 input 2 g r o u n d - i n p u t 3 o u t p u t 4 g r o u n d - o u t p u t tele filter zw eigniederlassung der dover germany gmbh 12.11.03 potsdamer str. 18 d- 14513 t e ltow (+49)03328-4784-10 ; fax (+49)03328-4784-30 http:\\ www. v e c t r o n . c o m
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