Crystal filter
QF 2.5-U0290/04
Application
Limiting values
Unit
Value
Center frequency
fo
MHz
2.5
Insertion loss
dB
4.0
Pass band at 6.0 dB
kHz
+<0.3...>3.04
Ripple in pass band
fo + 0.59...2.375 kHz
dB
2.0
at
10...+55
C fo + 0.55...2.5 kHz
dB
2.0
Stop band attenuation
fo - 0.4 kHz; fo + 7.5 kHz dB
40
Alternate attenuation
dB
> 60 (except spurious )
Input power
mW
< 10
Terminating impedance Z
R1 || C1
Ohm/pF
600 || 0
R2 || C2
Ohm/pF
600 || 0
Operating temp. range
C
-25... +70
8 pol filter
i.f.- filter
use in mobile and
stationary transceivers
Characteristics QF 2.5-U0290/04
Pass band Stop band
Pin connections:
1
Input
2
Ground-Input
3
Output
4
Ground-Output
TELE FILTER Zweigniederlassung der DOVER Germany GMBH
12.11.03
Potsdamer Str. 18 D- 14513 Teltow
(+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com
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