Monolithic crystal filter MQF21.4-0750/25 Application • 2 pol filter • i.f.- filter • use in mobile and Limiting values stationary transceivers Nominal frequency Insertion loss Pass band at 3.0dB Ripple in pass band Stop band attenuation Alernate attenuation Spurious response fo fo ± 2 kHz fo ± 12.5 kHz fo ± 30 kHz fo ± 100...500 kHz Terminating impedance Z R1||C1 R2||C2 Operating temp. range Storage temp. range Environment conditions Characteristics Pass band Pin connections: Unit Value MHz dB kHz dB dB dB dB dB 21.4 < 1.5 ±> 3.75 < 1.0 > 15 > 30 > 40 > 15 Ohm/pF Ohm/pF 850 || 6 850 || 6 °C °C -20... +70 -45... +85 according to CF001 MQF21.4-0750/25 Stop band 1 2 3 4 Input Ground-Input Output Ground-Output TELE FILTER Zweigniederlassung der DOVER Germany GMBH 02.06.04 Potsdamer Str. 18 D- 14513 Teltow (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com