Monolithic crystal filter MQF21.4-0750/18 Application • 8 pol filter • i.f.- filter • use in mobile and stationary transceivers Characteristics Pass band Pin connections: Unit Value Maximum input power Continuous input power MHz dB kHz dB dB dB dBm dBm 21.4 ≤ 3.5 ± ≥3.75 ≤ 2.0 ≥ 65 > 90 ≤ 10 ≤0 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 470 || 15 470 || 15 Operating temp. range °C -20... +70 Limiting values Center frequency Insertion loss Pass band at 3.0 dB Ripple in pass band Stop band attenuation fo fo ± 3.00 kHz fo ± 9.0 kHz fo ± 12.5...500 kHz MQF21.4-0750/18 Stop band 1 2 3 4 Input Ground-Input Output Ground-Output TELE FILTER Zweigniederlassung der DOVER Germany GMBH 06.05.03 Potsdamer Str. 18 D- 14513 Teltow (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com