Filename: tfs 868t.doc Version 2.0 25.07.2017 Vectron International Filter specification TFS 868T 1/5 Measurement condition Ambient temperature T : 23 C A Input power level: 0 dBm Terminating impedance: * Input: 120 -2.4 pF Output: 140 -2.4 pF Characteristics Remark: Reference level for the relative attenuation a of the TFS868T is the minimum of the pass band attenuation a . The minimum of the pass band rel min attenuation a is defined as the insertion loss a . The centre frequency f is the arithmetic mean value of the upper and lower frequencies at the 3 dB min e c filter attenuation level relative to the insertion loss a . The nominal frequency f is fixed at 868.80 MHz without tolerance. The given values for the relative e N attenuation a have to be reached at the frequencies given below even if the centre frequency fC is shifted due to the temperature coefficient of frequency rel TC in the operating temperature range and due to a production tolerance for the centre frequency f . C f D a t a typ. value tolerance / limit Insertion loss a 2.85 dB max. 3.6 dB e (reference level) Nominal frequency f - 868.80 MHz N Centre frequency f 868.80 MHz - C Passband PB 1.30 MHz min. 300 kHz Passband ripple p-p 0.6 dB max. 3 dB Amplitude ripple f 200kHz p-p 0.45 dB max. 2 dB N Relative attenuation a rel f f 200.0 kHz 0.45 dB max. 2 dB N N fN 200.0 kHz fN 300.0 kHz 0.52 dB max. 3 dB f - 858.3 MHz f - 12.3 MHz 56 dB min. 50 dB N N f - 12.3 MHz f - 2.8 MHz 36 dB min. 30 dB N N f + 2.7 MHz f + 11.7 MHz 41 dB min. 30 dB N N f + 11.7 MHz f + 21.7 MHz 43 dB min. 40 dB N N f + 21.7 MHz f + 27.7 MHz 51 dB min. 45 dB N N f + 27.7 MHz f + 131.7 MHz 57 dB min. 50 dB N N Input power level - max. 12 dBm Operating temperature range OTR - - 20 C ... + 70 C Storage temperature range - - 55 C ... + 125 C Frequency inversion temperature 10 C - 2 Temperature coefficient of frequency TC ** -0.033 ppm/K - f *) 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. **) = Generated: Checked / Approved: Vectron International GmbH Potsdamer Strae 18 D 14 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: tft vectron.com Vectron International GmbH 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. Filename: tfs 868t.doc Version 2.0 25.07.2017 Vectron International Filter specification TFS 868T 2/5 Filter characteristic 0 0 -0.5 -10 -1 -20 -1.5 -30 -2 -40 -2.5 -50 -3 -3.5 -60 -4 -70 -4.5 -80 -5 840 850 860 870 880 890 900 868.4 868.6 868.8 869 869.2 869.4 869.6 869.8 frequency in MHz frequency in MHz Construction and pin connection (All dimensions in mm) 7 5 1 Input 2 Ground 3 Ground 4 Ground 868T 5 Output 6 Ground J30 7 Ground 8 Ground 1 3 Date code 2,54 1 3 Date code: Year + week J 2017 K 2018 L 2019 ... 7 5 1,78 50 Test circuit L1 1 5 L2 SAW C1 C2 2, 3, 4, 6, 7, 8 Vectron International GmbH Potsdamer Strae 18 D 14 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: tft vectron.com Vectron International GmbH 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. 120%%d magnitude in dB 0,1 0,6 1,2 Max. SQ 3,81 + 0,2/-0,1 1,78 magnitude in dB