Monolithic crystal filter MQF21.421-3000/04 Application • 8 pol filter • i.f.- filter • use in mobile and stationary transceivers Characterstics Pass band Unit Value MHz dB kHz dB dB dB dBm 21.421 ≤ 4.0 ± 15.00 ≤ 2.0 ≥ 60 > 80 < 1.8 > 30 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 50 || 0 50 || 0 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 VSWR IP3 fo fo ± 12.00 kHz fo ± 31 kHz fo ± 500 kHz fo ± 10 kHz stop band MQF21.421-3000/04 Stop band Pin connections: 1 2 3 4 Input Input-E Output Output-E TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH 30.10.00 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.telefilter.com