Monolithic crystal filter MQF21.4-1200/01 Application • 2 pol filter • i.f.- filter • use in mobile and stationary transceivers Unit Value MHz dB kHz dB dB dB dB 21.4 ≤ 1.0 ± 6.00 ≤ 1.0 ≥ 20 > 35 > 14 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 900 || 0 900 || 0 Operating temp. range °C -25... +70 Limiting values Center frequency Insertion loss Pass band at 3.0 dB Ripple in pass band Stop band attenuation Spurious responses Characterstics Pass band fo fo fo fo fo ± ± ± + 4.00 kHz 25 kHz 200...1000 kHz 30...300 kHz MQF21.4-1200/01 Stop band Pin connections: 1 2 3 4 Input Input-E Output Output-E TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH 25.10.00 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.telefilter.com