Monolithic crystal filter MQF21.4-0750/02
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 ± 350 kHz
MHz dB kHz dB dB dB
21.4 < 2.5 ±> 3.75 < 1.0 > 40 except spurious > 60 except spurious
Terminating impedance Z R1||C1 R2||C2 Coupling capacitance
Ck
Ohm/pF Ohm/pF pF
1500 || 2 1500 || 2 10.0
Operating temp. range Storage temp. range Environment conditions Characteristics Pass band MQF21.4-0750/02 Stop band
°C °C
-20... +70 -45... +85 according to CF001
Pin connections:
1 2 3 4
Input Ground Output Ground
RoHS compliant 17.01.06
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
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