Monolithic crystal filter MQF21.4-1200/10 Application • 2 pol filter • i.f.- filter • use in mobile and stationary transceivers Characterstics Pass band Unit Value MHz dB kHz dB dB dB dB 21.4 ≤ 1.5 ± 6.00 ≤ 0.5 ≥ 20 > 50 > 35 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 1200 || 3 1200 || 3 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 Alternate attenuation fo fo fo fo fo ± ± + 3.50 kHz 25 kHz 0.2...1 MHz 0.35..1 MHz MQF21.4-1200/10 Stop band Pin connections: 1 2 3 4 Input Input-E Output Output-E TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH 20.05.99 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.telefilter.com