Part No.:LTC455BU/LTC455CU/LTC455DU/LTC455EU/LTC455FU/LTC455GU/LTC455HU/LTC455IGI Specifications: Part number: LTC455HU Center frequency(Center of 6dB B.W(KHz)min:455±1.5 6dB Band Width(KHz)max:±3.0 40dB Band Width(KHz)max:±9.0 Stop Band Attenution455±100KHz(dB):min:25 Insortion Loss at Minimum Loss pion(dB)max:6 Ripple(dB)max:2.0 Input/Output Impedance(Ω):1500