TFS1220B Datasheet | Unknown Manufacturer

TFS1220B.doc version 1.3 VI TELEFILTER 1. Measurement condition 23 0 °C d Bm Filter Specification TFS 1220B 1/6 Ambient temperature: Input power level: Terminating impedances- for input: 200 Ω for input: 200 Ω 2. Remark: Characteristics Reference level for the relative attenuation arel of the TFS 1220B 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 centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3 d B filter attenuation level relative to the insertion loss ae. The nominal frequency f N is fixed at 1220,0 MHz without tolerance. The temperature coefficient of frequency Tcf is valid both for the frequency fc and the frequency response of the filter in the operating temperature rang. Data Insertion loss (Reference level) Nominal frequency Centre frequency 1,5 d B Bandwidth Pass band ripple Relative attenuation f C .... f C ± 4,0 MHz arel ae = amin f N fc typ. value 3,50 1220,0 19,0 1,0 58 54 55 54 55 57 57 58 MHz d B d B d B d B d B d B d B d B 56 MHz MHz d B d B tolerance/limit max. 5,8 d B MHz max. 1220,0 1220,0 ±2,0 MHz min. 8,0 max. 1,5 max. 1,5 min. min. min. min. min. min. min. min. d B 40,2 44,2 42,0 44,2 40,2 44,2 44,2 44,2 min. MHz d B d B d B d B d B d B d B d B d B d B 44,2 MHz f C - 36,0 MHz f C - 44,0 MHz f C - 72,0 MHz f C - 88,0 f C - 68,0 MHz .. . f C - 76,0 MHz f C - 76,0 MHz .... f C - 85,0 MHz f C - 85,0 MHz .... f C - 91,0 MHz f C - 91,0 MHz .... f C - 720,0 MHz f C + 70,0 MHz .... f C + 780,0 d B Group delay ripple GD- - f...