Crystal filter
QF 1.4-L0235/05
Application
•
10 pol filter
•
i.f.- filter
•
use in mobile and
stationary transceivers
Limiting values
Unit
Value
Center frequency
Insertion loss
Pass band at 4.0 dB
Ripple in pass band
Stop band attenuation
fo
fo –2.3...-0.6 kHz
fo
fo – 3.1 kHz
fo +0.15 kHz
fo -3.4 kHz; fo+0.4 kHz
Alternate attenuation
Terminating impedance Z
R1 || C1
R2 || C2
MHz
dB
kHz
dB
dB
dB
dB
dB
dB
1.4
≤
4.0
-2.7...-0.35
≤
2.0
≥
20
> 35
> 40
> 60
> 60 except spurious
Ohm/pF
Ohm/pF
1000 || 15
1000 || 15
Operating temp. range
°C
-15... +55
Characterstics
Pass band
QF 1.4-L0235/05
Stop band
Pin connections:
1
2
3
4
Input
Ground-Input
Output
Ground-Output
TELE FILTER Zweigniederlassung der DOVER Germany GMBH
Potsdamer Str. 18 D- 14513 Teltow
19.06.01
(+49)03328-4784-10 ; Fax (+49)03328-4784-30 http:\\www.vectron.com