Monolithic crystal filter MQF21.4-0730/05 Application • 10 pol filter • i.f.- filter • use in mobile and Limiting values stationary transceivers Nominal frequency Centre frequency Insertion loss Pass band at 6.0dB Ripple in pass band Stop band attenuation Alternate attenuation Spurious response fo fc fc ± 2.5 kHz fc ± 6.47 kHz fo ± 10 kHz fo ± >35 kHz Terminating impedance Z R1||C1 R2||C2 Coupling capacitance Operating temp. range Storage temp. range Environment conditions Characteristics Pass band Pin connections: Unit Value 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 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 according to CF001 MQF21.4-0730/05 Stop band 1 2 3 4 Input Ground-Input Output Ground-Output TELE FILTER Zweigniederlassung der DOVER Germany GMBH 25.11.04 Potsdamer Str. 18 D- 14513 Teltow (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com