TFS125A
TFS125A is VI TELEFILTER manufactured by Vectron International.
tfs125a.doc
Version 1.3
VI TELEFILTER
Measurement condition
Ambient temperature: 23 °C Input power level: 0 d Bm Terminating impedances: 50 Ω
Filter Specification
TFS 125 A
- Page 1 / 4
Stability Characteristics and Packing
See page 3
Air Reflow Temperature Conditions
See page 4
Construction, pin connection and remended land dimensions
See page 2
Characteristics
Remark: Reference level for the relative attenuation arel of the TFS 125 A is the maximum attenuation in the passband. The maximum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency f N is fixed at 125 MHz without tolerance or limit. The values of relative attenuation arel are guaranteed in the whole operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme.
Data typ. value tolerance / limit
______________________________________________________________________________________________________ Insertion loss 1,5 ... 3,5 d B ae (Reference level) ______________________________________________________________________________________________________ Nominal frequency 125 MHz f N ______________________________________________________________________________________________________ 1 d B bandwidth min 300 k Hz BW ______________________________________________________________________________________________________ Relative attenuation arel
- 150 k Hz ... f N + 150 k Hz max. 1 d B 1 MHz... f N
- 28 MHz min. 12 d B f N
- 28 MHz ... f N
- 14 MHz min. 5 d B f N + 14 MHz... f N + 28 MHz min. 15 d B f N + 28 MHz... f N + 325 MHz min. 38 d B ______________________________________________________________________________________________________ VSWR f N
- 150 k Hz ... f N + 150 k Hz max 2 : 1...