Monolithic crystal filter MQF21.4-0730/05 Application • 10 pol filter • i.f.- filter • use in mobile and stationary transceivers Unit Value fo ± <35 kHz Mhz MHz dB kHz dB dB dB dB dB 21.4 21.4 ± 600 Hz ≤ 7.0 ± 3.67 ≤ 2.0 ≥ 60 > 80 > 80 < 90 Ck1/Ck2/Ck3/Ck4 Ohm/pF Ohm/pF pF 800 || 6.5 800 || 6.5 16.5/17.7/17.7/16.5 °C °C -40... +85 -40... +125 Limiting values Nominal frequency Centre frequency Insertion loss Pass band at 6.0 dB Ripple in pass band Stop band attenuation Alternate attenuation Spurious response Terminating impedance Z R1 || C1 R2 || C2 Coupling capacitance fo fc fc ± 2.50 kHz fc ± 6.47 kHz fo ± 10 kHz Operating temp. range Storage temperature Characterstics Pass band MQF21.4-0730/05 Stop band Pin connections: 1 2 3 4 Input Input-E Output Output-E TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH 12.11.98 Potsdamer Str. 18 D- 14513 Teltow ! (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.telefilter.com