PDF TFS125G Data sheet ( Hoja de datos )

Número de pieza	TFS125G
Descripción	VI TELEFILTER
Fabricantes	Vectron International
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No Preview Available ! tfs125g.doc VI TELEFILTER Filter Specification version 1.2 TFS 125 G 05.11.2002 1/5 Measurement Condition Ambient temperature: 23 C Input power level: 0 dBm Source impedance: 200 balanced Load impedance: 50 single ended Terminating impedances: ) input: 880 // -11,0 pF output: 890 // -12,6 pF Characteristics Remark: Reference level for the relative attenuation arel of the TFS 125G is the attenuation at 125 MHz. Reference for the echo response attenuation is the main time response lobe, the reference time is defined as t0. The nominal frequency fN is fixed at 125 MHz without tolerance. The given values for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below even if the centre frequency fc 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 fc. Data typ. Value Limit Absolute attenuation within fN 0,1 MHz 8 dB 7 ...10 dB Nominal frequency fN - 125 MHz Pass band ripple fN ..... fN fN 0,1 MHz ... fN fN 0,2 MHz ... fN 1 dB-bandwidth 0,1 MHz 0,2 MHz 0,5 MHz - - - 1235 kHz max. max. max. 0,25 dB 0,5 dB 1 dB min. 1000 kHz Relative attenuation arel fN ... fN 0,5 MHz fN 1,2 MHz ... fN 1,8 MHz fN 1,8 MHz ... fN 6 MHz fN 6 MHz ... fN 13 MHz fN - 13 MHz ... fN - 115 MHz fN + 13 MHz ... fN + 325 MHz - - 30 dB 50 dB 60 dB 65 dB max. 1 min. 9 min. 25 min. 35 min. 50 min. 50 dB dB dB dB dB dB Echo response attenuation t0 + 2 t0 + 3 t0 + 4 t0 + 5 t0 + 6 µs µs µs µs µs arel Group delay @ fN Group delay ripple within fN 0,5 MHz 42 dB 43 dB 56 dB 70 dB 75 dB 705 ns 120 ns min. 30 min. 40 min. 50 min. 55 min. 60 dB dB dB dB dB max. 750 ns max. 150 ns Input power level - max. + 10 dBm VSWR within fN 0,5 MHz - min. 2:1 Intermodulation products 62 dBm min. 60 dBm Operating temperature range Storage temperature range Temperature coefficient of frequency Frequency inversion temperature TCf ** T0 -0,036 ppm/K2 30 °C - 10 °C ... + 85 °C - 40 °C ... + 125 °C - - ) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference values only. Should there be additional questions, do not hesitate to ask for an application note or contact our design team. ) fin,1=125MHz; fin,2=125,1MHz; Pin=4dBm+loss @fN; fout,1=124,9MHz; fout,2=125,2MHz; then Pout <-56dBm **) f(Hz) = TCf(ppm/K²) x (T-T0)² x fTo(MHz) generated: checked / approved: ______________________________________________________________________________________________________ VI TELEFILTER Potsdamer Straße 18 D 14 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: [email protected] VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. www.DataSheet4U.net 1 page tfs125g.doc VI TELEFILTER Filter Specification version 1.2 TFS 125 G 05.11.2002 5/5 History Version Reason of Changes Name Development specification 1.0 generation of development specification Chilla 1.1 terminating impedance (preliminary values) and typical values of relative attenuationPfeiffer added 1.2 terminating impedance changed and typical values added Pfeiffer Date 17.07.2002 25.09.2002 08.11.2002 ______________________________________________________________________________________________________ VI TELEFILTER Potsdamer Straße 18 D 14 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: [email protected] VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. 5 Page

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