TFS440A

The TFS440A 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: 300 || -0.8 pF;(6)Terminating impedances output: 300 || -0.8 pF;(7)external coil: 56 nH.

The electrical characteristics of this device can be summarized as:(1)Insertion Loss (Reference level): 6.5 dB;(2)Nominal Frequency: 440.0 MHz;(3)centre frequency: 440,015 MHz;(4)Pass Band Ripple: 0.5 to 1.5 dB;(5)Group delay ripple: 0.9 us to 2.0 us;(6)Operating Temperature Range: -20 °C to +70 °C;(7)Input power level: +5 dBm;(8)Temperature coefficient of frequency: -0.036 ppm/K²;(9)Storage temperature range: -35 °C to +85 °C;(10)Frequency inversion temperature: +25 °C. If you want to know more information about the TFS440A, please download the datasheet in www.seekic.com or www.chinaicmart.com .