MQF21.4-0750-11_04 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Monolithic crystal filter

Monolithic crystal filter
MQF21.4-0750/11
Application
• 4 pol filter
• i.f.- filter
• use in mobile and
stationary transceivers
Limiting values
Nominal frequency
Insertion loss
Pass band at 3.0dB
Ripple in pass band
Stop band attenuation
Alternate attenuation
fo
fo ± 3 kHz
fo ± 14 kHz
fo - 200...1000 kHz
fo + 350...1000 kHz
Unit
Value
MHz
dB
kHz
dB
dB
dB
dB
21.4
< 2.5
±> 3.75
< 1.0
> 40 except spurious
> 80
> 65 except spurious
Terminating impedance Z
R1||C1
R2||C2
Coupling capacitance
Ck
Operating temp. range
Storage temp. range
Environment conditions
Characteristics MQF21.4-0750/11
Pass band
Stop band
Ohm/pF 1600 || 3
Ohm/pF 1600 || 3
pF
8.2
°C
-25... +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
27.01.04
Potsdamer Str. 18 D- 14513 Teltow  ([phone] ; Fax [phone] http:\\www.vectron.com