Monolithic crystal filter MQF21.4-2000/19 Application • 8 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 ± 600 Hz ≤ 4.0 ± 9.8...11.2 ≤ 1.0 ≥ 60 > 70 > 70 Terminating impedance Z R1 || C1 R2 || C2 Ohm/pF Ohm/pF 50 || 0 50 || 0 Operating temp. range Storage temp. range °C °C -30... +70 -55... +105 Limiting values Centre frequency Insertion loss Pass band at 3.0 dB Ripple in pass band Stop band attenuation Alternate attenuation Spurious response fc fc ± 7.5 kHz fo ± 20 kHz fo ± 200 kHz MQF21.4-2000/19 Stop band Pin connections: 1 2 3 4 Input Input-E Output Output-E TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH 06.07.98 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.telefilter.com