TFS770

File name : TFS770.doc version 1.1 13.10.2003 VI TELEFILTER Development Specification TFS 770 1/5 Measurement condition Ambient temperature: Input power level: Terminating impedance: * Input: Output: 23 0 50 50 °C dBm Ω Ω Characteristics Remark: The maximum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 770 MHz without any tolerance or limit. The values of absolute attenuation arel are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme. Data Insertion loss Nominal frequency Passband Pass band ripple Absolute attenuation 0 707 723 739 800 813 868 998 MHz MHz MHz MHz MHz MHz MHz MHz ... ... ... ... ... ... ... ... 707 723 739 743 813 868 998 1910 MHz MHz MHz MHz MHz MHz MHz MHz OTR aabs ae fN PB typ. value - tolerance / limit max. 2,5 770 fN ± max. 6 0,7 dB MHz MHz dB TCf ** T.B.D PB ppm/K min. min. min. min. min. min. min. min. 45 40 35 25 15 30 50 30 dB dB dB dB dB dB dB dB Operating temperature range Storage temperature range Temperature coefficient of frequency Input power level VSWR - 30 °C ... + 85 °C - 40 °C ... + 85 °C max. max. 15 2:1 dBm *) 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 co...