MQF21.855-1200-01 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Monolithic crystal filter

Monolithic crystal filter
MQF21.855-1200/01
Application
• 2 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
fo
fo ± 3.0 kHz
fo ± 25 kHz
fo + 0.35...1 MHz
fo - 0.2....1 MHz
Terminating impedance Z
R1 || C1
R2 || C2
Operating temp. range
Unit
Value
MHz
dB
kHz
dB
dB
dB
dB
21.855
≤ 1.5
± 6.0
≤ 0.5
≥ 20
> 35
> 50
Ohm/pF 910 || 3
Ohm/pF 910 || 3
°C
-20... +70
Characterstics MQF21.855-1200/01
Pass band
Stop band
Pin connections: 1 Input
2 Input-E
3 Output
4 Output-E
TELE FILTER Zweigniederlassung der DOVER EUROPE GMBH
31.03.98
Potsdamer Str. 18 D- 14513 Teltow ! ([phone] ; Fax [phone] http:\\www.telefilter.com