MQF21.4-0750-11_04

Monolithic crystal filter MQF21.4-0750/11 Application • 4 pol filter • i.f.- filter • use in mobile and stationary transceivers Limiting values Unit Value Nominal frequency Insertion loss Pass band at 3.0dB Ripple in pass band Stop band attenuation Alternate attenuation fo fo ± 3 kHz fo ± 14 kHz fo - 200...1000 kHz fo + 350...1000 kHz MHz dB kHz dB dB dB dB 21.4 < 2.5 ±> 3.75 < 1.0 > 40 except spurious > 80 > 65 except spurious Terminating impedance Z R1||C1 R2||C2 Coupling capacitance Ck Ohm/pF Ohm/pF pF 1600 || 3 1600 || 3 8.2 Operating temp. range Storage temp. range Environment conditions Characteristics Pass band MQF21.4-0750/11 Stop band °C °C -25... +70 -45... +85 according to CF001 Pin connections: 1 2 3 4 Input Ground-Input Output Ground-Output 27.01.04 TELE FILTER Zweigniederlassung der DOVER Germany GMBH Potsdamer Str. 18 D- 14513 Teltow (+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com