Monolithic crystal filter MQF21.4-1800/10 Application • 2 pol filter • i.f.- filter • use in mobile and Limiting values stationary transceivers Characterstics Pass band Pin connections: Unit Value Center frequency Insertion loss Pass band at 3.0 dB Ripple in pass band Stop band attenuation fo fo ± 5.00 kHz fo ± 26 kHz MHz dB kHz dB dB Alternate attenuation fo ± 450 kHz dB 21.4 ≤ 2.0 ± 9.00 ≤ 1.0 ≥ 15 except spurious > 30 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 2500 || 2 2500 || 2 Operating temp. range Storage temp. range °C °C -20... +70 -55...+85 MQF21.4-1800/10 Stop band 1 2 3 4 Input Ground-Input Output Ground-Output TELE FILTER Zweigniederlassung der DOVER Germany GMBH 16.05.01 Potsdamer Str. 18 D- 14513 Teltow (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com