LTC455DU Datasheet, PDF (1/3 Pages) Shenzhen Luguang Electronic Technology Co., Ltd – Ceramic Filter

LTC455DU
Ceramic Filter
1.Scope
This specification shall cover the characteristics of the ceramic filter with 455KHz.
2.Part No. : LTC455DU
3.Electrical Specification
Item
3-1 Center Frequency (Fo)
3-2 Insertion Loss(dB)
3-3 Ripple (dB)
3-4 Band Width (6dB)
3-5 Selectivity (40dB)
3-6 Stop Band Attenuation
3-7 Input / Output Impedance
3-8 Temperature Coefficient of
Center Frequency
Specifications
455KHz ±1.5KHz
4.0dB max.
2.0dB max.( ±5KHz)
±10.0KHz min.
±20.0Khz max.
27dB min.(Fo ± 100KHz)
1.5KΩ
± 50ppm/℃ max.
(-20℃ to +80℃)
Note.: A). Center Frequency shall be defined as the central value of the
band width at 6dB.
B). Temperature coefficient of center frequency shall be defined
as the average of the central frequency shift throughout the
specified temperature range.
4.Measurement
4-1 Environmental Condition
Measurement shall be carried out at the reference temperature of 25℃±2
℃. It shall be possibly done at 5℃ to 35℃ unless it is questionable.
4-2 Measuring Circuit
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