Monolithic crystal filter MQF21.4-1200/30 Application • 4 pol filter • i.f.- filter • use in mobile and stationary transceivers Unit Value MHz dB kHz dB dB dB dB dB 21.4 ≤ 3.0 ± 6.00 ≤ 1.0 ≥ 50 > 80 > 60 except spurious > 85 < 2:1 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 50 || 0 50 || 0 Operating temp. range °C -20... +50 Limiting values Center frequency Insertion loss Pass band at 3.0 dB Ripple in pass band Stop band attenuation Alternate attenuation IMD (input power -10 dBm) VSWR Characterstics Pass band fo fo ± 4.80 kHz fo ± 25 kHz fo ± 200 kHz f1=fo±200,f2=fo±400kHz fo ± 4.80 kHz MQF21.4-1200/30 Stop band Pin connections: 1 2 3 4 Input Input-E Output Output-E TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH 16.03.99 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.telefilter.com