MQF21.4-0750-28 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Monolithic crystal filter

Monolithic crystal filter
MQF21.4-0750/28
Application
• 6 pol filter
• i.f.- filter
• use in mobile and
stationary transceivers
Limiting values
Center frequency
Insertion loss
Pass band at 3.0 dB
Ripple in pass band
Stop band attenuation
Alternate attenuation
Unit
Value
fo at 25°C
fo ± 2.0 kHz
fo ± 3.0 kHz at 25°C
fo ± 8.75 kHz
fo ± 12.5 kHz
fo ± 20...500 kHz
MHz
dB
kHz
dB
dB
dB
dB
dB
21.4 ± 300 Hz
≤ 3.0
± 3.75
≤ 1.0
> 1.0
≥ 45
> 65
> 80
Terminating impedance Z
R1 || C1
R2 || C2
Ohm/pF 850 || 5
Ohm/pF 850 || 5
Operating temp. range
°C
-40... +80
Characterstics MQF21.4-0750/28
Pass band
Stop band
Pin connections: 1 Input
2 Input-E
3 Output
4 Output-E
TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH
16.03.99
Potsdamer Str. 18 D- 14513 Teltow ! ([phone] ; Fax [phone] http:\\www.telefilter.com