TFS111B
file: tfs111b.doc 26.02.2002 version 2.0
VI TELEFILTER
Measurement condition Ambient temperature: 23°C Input power level: 0d Bm Terminating impedances
- ) for input: 3,2 kΩ ||- 5,6p F for output: 3,1 kΩ || -6.2p F Characteristics
Filter specification
TFS 111B
1/5
Remark: The reference level for the relative attenuation arel of TFS 111B is the minimum of the pass band attenuation amin. This value is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 20,0 d B filter attenuation level relative to the insertion loss ae.
Data
Insertion loss (reference level) Centre frequency ae = amin typ. value
7 d B tolerance / limit
11 d B fc (30 d B-BW)
111 1 22 33 45
MHz d B d B d B d B max. min. min. min.
± 60 2 20 30 40 k Hz d B d B d B d B
Relative attenuation arel fc
- 500 k Hz ... fc + 500 fc ± fc ± fc ±
- - ) Group delay Ripple fc ± 500 k Hz Temperature coefficient
GD k Hz MHz MHz MHz
1 2 3
MHz ... fc ± 2 MHz ... fc ± 3...
