VI TELEFILTER
tfs70H14.doc
Version 1.1
16.04.2002
VI TELEFILTER
Measurement condition :
Ambient temperature TA: Input power level: ...
Description
tfs70H14.doc
Version 1.1
16.04.2002
VI TELEFILTER
Measurement condition :
Ambient temperature TA: Input power level: Terminating impedances in fc:
Filter specification
TFS 70H14
1/5
25 °C 0 dBm for input: for output:
50 50
// 0 pF // 0 pF
Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 70H14 is the minimum of the pass band attenuation a min. The minimum of the pass band attenuation amin is defined as the insertion loss ae. The reference frequency fc is the arithmetic mean value of the upper and lower frequencies at the 20 dB filter attenuation level relative to the insertion loss ae . The temperature coefficient of frequency Tcf is valid both for the reference frequency f c and the frequency response of the filter in the operating temperature range. The frequency shift of the filter in the operating temperature range is not included in the production tolerance scheme.
Data
Insertion loss (Reference level) Centre frequency at ambient temperature (fCTA) Pass band : Amplitude ripple in PB : Bandwidth at ambient temperature TA: 1 3 40 dB - band width dB - band width dB - band width arel 4,0 4,25 20 MHz MHz MHz BW ae fc PB
typ. value
tolerance / limit max. 25 dB MHz MHz dB
70,0
MHz
70,0 ± 0,1 fc .. fc ± 3,85 max. 0,8
8,9 10,9
MHz MHz
min. min. max.
8,0 8,5 11,1
MHz MHz MHz
Relative attenuation fc fc ± fc ± 4,0 5,55 ..... fc ± MHz ..... fc ± MHz ..... fc ±
45 1,8 33 0,6 -87 dB µs ns ° ppm/K²
max. max. min. max.
1 3 40 ...
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