TFS220D Datasheet | Vectron International

tfs220d.doc version 1.2 ______________________________________________________________________________________________________ .. VI TELEFILTER Filter specification TFS 220 D 1/4 Measurement Condition Ambient Temperature: Input Power Level: Source impedance: Load impedance: Terminating impedances: input: output: 23 °C 0 d Bm 50 Ω single ended 50 Ω single ended 410 Ω || -9.5p F 900 Ω || -6.2p F Construction, pin connection and 50 Ω test circuit see page 2 Stability characteristics and packing see page 3 Air reflow temperature conditions see page 4 Characteristics Remark: Reference level for the relative attenuation arel is the minimum of the pass band attenuation amin. The minimum of the pass band attenuation amin is defined as the insertion loss ae. The nominal frequency f N is fixed to 220,38 MHz. The given values for the relative attenuation arel and for the phase ripple have to be reached at the frequencies given below also if the centre frequency fo is shifted due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre frequency fo. Data typ. Value Limit ______________________________________________________________________________________________________ Insertion Loss 6.2 d B max. 10 d B ae = amin (Reference level) ______________________________________________________________________________________________________ Nominal Frequency f N 220,38 MHz ______________________________________________________________________________________________________ 5 d B - Bandwidth 1,6 MHz min. 1,26 MHz BW ______________________________________________________________________________________________________ Relative Attenuation arel f N ± 0,63 MHz f N ± 1,25 MHz ... f N ± 20 MHz max. min. 5 33 d B d B f N - 1,25 MHz 45 d B min. 35 d B f N + 1,25 MHz 45 d B min. 35 d B...