Monolithic crystal filter
MQF21.4-0750/16
Application
•
4 pol filter
•
i.f.- filter
•
use in mobile and
stationary transceivers
Limiting values
Unit
Value
Nominal frequency
Insertion loss
Pass band at 3.0 dB
Ripple in pass band
Stop band attenuation
fo
fo
±
3.00 kHz
fo
±
14
kHz
MHz
dB
kHz
dB
dB
21.4
≤
2.5
±
3.75
≤
1.0
≥
40 except spurious
Terminating impedance Z
R1 || C1
R2 || C2
Coupling capacitance
Ck
Ohm/pF
Ohm/pF
pF
850 || 5
850 || 5
16.0
Operating temp. range
°C
-25... +70
Characterstics
Pass band
MQF21.4-0750/16
Stop band
Pin connections:
1
2
3
4
Input
Ground-Input
Output
Ground-Output
25.07.01
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