QF21.4-20000 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Crystal filter

Crystal filter
QF21.4-20000/06
Application
4 pol filter
Limiting values
i.f.- filter
use in mobile and
stationary transceivers
Nominal frequency
Centre frequency
Insertion loss
Pass band at 3.0dB
Ripple in pass band
Stop band attenuation
Alternate attenuation
Spurious response
Return loss
IP3 (input)
fo
fc
fc ± 80 kHz
fc ± 400 kHz
fo ± 2.5...5 MHz
fo ± 80 kHz
fo±200; fo±400 kHz
Unit
MHz
MHz
dB
kHz
dB
dB
dB
dB
dB
Bm
Value
21.4
21.4 ± 7.5 kHz
< 8.0
±> 100
< 1.5
> 60 except spurious
> 90 except spurious
> 55
>9
> 30
Terminating impedance Z
R1||C1
R2||C2
Operating temp. range
Characteristics QF21.4-20000/06
Pass band
Stop band
Ohm/pF 50 || 0
Ohm/pF 50 || 0
°C
-10... +70
Pin connections:
1 Input
2 Ground-Input
3 Output
4 Ground-Output
TELE FILTER Zweigniederlassung der DOVER Germany GMBH
29.10.02
Potsdamer Str. 18 D- 14513 Teltow ([phone] ; Fax [phone] http:\\www.vectron.com