MQF21.4-0750-25_04 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Monolithic crystal filter

Monolithic crystal filter
MQF21.4-0750/25
Application
• 2 pol filter
• i.f.- filter
• use in mobile and
stationary transceivers
Limiting values
Nominal frequency
Insertion loss
Pass band at 3.0dB
Ripple in pass band
Stop band attenuation
Alernate attenuation
Spurious response
fo
fo ± 2 kHz
fo ± 12.5 kHz
fo ± 30 kHz
fo ± 100...500 kHz
Unit
Value
MHz
dB
kHz
dB
dB
dB
dB
dB
21.4
< 1.5
±> 3.75
< 1.0
> 15
> 30
> 40
> 15
Terminating impedance Z
R1||C1
R2||C2
Operating temp. range
Storage temp. range
Environment conditions
Characteristics MQF21.4-0750/25
Pass band
Stop band
Ohm/pF 850 || 6
Ohm/pF 850 || 6
°C
-20... +70
°C
-45... +85
according to CF001
Pin connections:
1 Input
2 Ground-Input
3 Output
4 Ground-Output
TELE FILTER Zweigniederlassung der DOVER Germany GMBH
02.06.04
Potsdamer Str. 18 D- 14513 Teltow  ([phone] ; Fax [phone] http:\\www.vectron.com