Monolithic crystal filter
MQF21.4-1500/33
Application
•
10 pol filter
•
i.f.- filter
•
use in mobile and
stationary transceivers
Limiting values
Unit
Value
Nominal frequency
Insertion loss
Pass band at 6.0dB
Ripple in pass band
Stop band attenuation
fo
Alternate attenuation
Group delay distortion
fo ± 6.25 kHz
fo ± 12.5 kHz
fo ± 15 kHz
fo ± 17.5 kHz
fo ± 20...500 kHz
fo ± 6.25 kHz
MHz
dB
kHz
dB
dB
dB
dB
dB
µs
21.4
< 4.0
±> 7.5
< 2.0
> 50
> 70
> 80
> 90
< 70
Terminating impedance Z
R1||C1
R2||C2
Ohm/pF
Ohm/pF
1500 || 1
1500 || 1
Operating temp. range
°C
-20... +70
Characteristics
Pass band
MQF21.4-1500/33
Stop band
Pin connections:
1
2
3
4
Input
Ground-Input
Output
Ground-Output
18.12.02
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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