F90M20A Datasheet, PDF (1/1 Pages) ECM Electronics Limited. – Monolithic Crystal Filters

Monolithic Crystal Filters
ECM 90.0MHz
ƒ Small Size
ƒ Cost Effective Design
ƒ Surface Mount Available
ƒ Custom Options
Type
3^rd Overtone
F90M7.5A
F90M7.5B
F90M12A
F90M12B
F90M15A
F90M15B
F90M20A
F90M20B
F90M30A
F90M30B
Centre
Frequency
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
90.00MHz
Ripple
(max)
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
1.0dB
Number
Of Poles
Passband
Width
Termination Case Style
Impedance
2
3dB +/-3.75kHz 2000Ω//0.3pF UM a ~ f
4
3dB +/-3.75kHz 1800Ω//0.1pF UM a ~ f
2
3dB +/-6.00kHz 2000Ω//0pF UM a ~ f
4
3dB +/-6.00kHz 2000Ω//-0.3pF UM a ~ f
2
3dB +/-7.50kHz 2000Ω//-0.1pF UM a ~ f
4
3dB +/-7.50kHz 2000Ω//-0.5pF UM a ~ f
2
3dB +/-10kHz 2500Ω//-0.4pF UM a ~ f
4
3dB +/-10kHz 2500Ω//-0.6pF UM a ~ f
2
3dB +/-15kHz 4000Ω//-0.7pF UM a ~ f
4
3dB +/-15kHz 4000Ω//-0.7pF UM a ~ f
Code Case A
B
C
D
E
F
UM a UM-1 8.0 3.0 8.0 20.0 3.75 0.35
UM b UM-1S 8.0 2.5 8.0 20.0 3.75 0.35
UM c UM-5 8.0 3.0 6.0 20.0 3.75 0.35
UM d UM-5S 8.0 2.5 6.0 20.0 3.75 0.35
UM e UM-4 8.0 3.0 4.5 20.0 3.75 0.35
UM f UM-4S 8.0 2.5 4.5 20.0 3.75 0.35
Dimensions in mm
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: [phone]: Fax: [phone]. Email: [e-mail]
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
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