Surface Acoustic Wave (SAW) Filters - 50-99MHz

Reference level for the relative attenuation arel of the DW9274 is the insertion loss. The insertion loss ae is defined as the insertion loss at the nominal frequency f N. The centre frequency f C is the arithmetic mean value of the upper and lower frequencies at the 3 dB Filter attenuation level relative to the insertion loss ae . The temperature coefficient of frequency Tcf is valid both for the reference frequency f C and the frequency response of the Filter at the operating temperature. The frequency shift of the Filter at the operating temperature not included in the production tolerance scheme. By Dynex Semiconductor