TFS249A

The TFS249A is designed as one kind of VI telefilter. The measurement condition of this device are:(1)Ambient Temperature: 23 °C;(2)Input Power Level: 0 dBm;(3)Source impedance: 50 ;(4)Load impedance: 50 ;(5)Terminating impedances input: 1150 || -6.5 pF;(6)Terminating impedances output: 1050 || -6.5 pF;(7)external coil: 89 nH.

The electrical characteristics of this TFS249A can be summarized as:(1)Insertion Loss (Reference level): 14.0 dB to max. 20.0 dB;(2)Nominal Frequency: 249.6 MHz;(3)centre frequency: 249.6 MHz;(4)Pass Band Ripple: 1.0 dB;(5)Group delay ripple: 35 ns to 50 ns;(6)Operating Temperature Range: -10 °C to +80 °C;(7)Input power level: +10 dBm;(8)VSWR: 12 dB to 16 dB;(9)Storage temperature range: -30 °C to +85 °C;(10)Temperature coefficient: - 0.04 ppm/K;(11)Frequency inversion temperature: +35 °C. If you want to know more information about the TFS249A, please download the datasheet in www.seekic.com or www.chinaicmart.com .