QF21.4-0020-06 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Crystal filter

Crystal filter
QF21.4-0020/06
Application
• 6 pol filter
Limiting values
• i.f.- filter
• use in mobile and
stationary transceivers
Nominal frequency
Centre frequency
Insertion loss
Pass band at 6.0dB
Ripple in pass band
Stop band attenuation
Alternate attenuation
Group delay distortion
fo
fc
fc ± 0.1 kHz
fc ± 0.5 kHz
fc ± 0.1 kHz
Unit
MHz
MHz
dB
kHz
dB
dB
dB
µs
Value
21.4
21.4 ±250Hz
< 24.0
± 0.1...0.25
Gaussian
> 40
> 60
< 300
Terminating impedance Z
R1||C1
R2||C2
Operating temp. range
Storage temp. range
Environment conditions
Characteristics QF21.4-0020/06
Pass band
Stop band
Ohm/pF 50 || 0
Ohm/pF 50 || 0
°C
-20... +70
°C
-45... +85
according to CF001
Pin connections:
1 Input
2 Ground-Input
3 Output
4 Ground-Output
TELE FILTER Zweigniederlassung der DOVER Germany GMBH
02.04.04
Potsdamer Str. 18 D- 14513 Teltow ! ([phone] ; Fax [phone] http:\\www.vectron.com