Monolithic crystal filter MQF21.4-1500/42 Application • 4 pol filter • i.f.- filter • use in mobile and Unit Value fo ± 6.00 kHz fo ± 25 kHz fo ± 50...500 kHz MHz dB kHz dB dB dB 21.4 ≤ 2.5 ± 7.50 ≤ 1.0 ≥ 40 > 60 except spurious >50 Ck Ohm/pF Ohm/pF pF 1800 || 1 1800 || 1 5.6 °C -20... +70 Limiting values stationary transceivers Center frequency Insertion loss Pass band at 3.0 dB Ripple in pass band Stop band attenuation Alternate attenuation Terminating impedance Z R1 || C1 R2 || C2 Coupling capacitance fo Operating temp. range Characterstics Pass band Pin connections: MQF21.4-1500/42 Stop band 1 2 3 4 Input Ground-Input Output Ground-Output TELE FILTER Zweigniederlassung der DOVER Germany GMBH 26.01.04 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com