LT-455/450 U/W,LTM-455/450 U/W Series FEATURES The LT-455<M-455 series ceramic filter is the miniature profile filter for communication use. Low Cost Communication Use Low Profile Excellent Temperature Stability High Durability Electrical Specifications Insertion Loss (dB)max Center Frequency (Khz) Part Number Pass Band Ripple (dB)max 6dB Band Width (KHz)min 40dB Band Width (KHz)max (Lt455 U) 50dB Band Width (KHz)max (Lt455 U) Stop Band Attenuation fo 100KHz (dB)min Lt455 U Lt455 W Input/Output impedance ( ) LT455BU/W LTM455BU/W 455 2.0 4 2 15 30 30 28 40 1500 LT455CU/W LTM455CU/W 455 2.0 4 2 12.5 24 24 28 40 1500 LT455DU/W LTM455DU/W 455 1.5 4 2 10 20 20 28 40 1500 LT455EU/W LTM455EU/W 455 1.5 6 2 7.5 15 15 28 40 1500 LT455FU/W LTM455FU/W 455 1.5 6 2 6 12.5 12.5 28 40 2000 LT455GU/W LTM455GU/W 455 1.5 6 2 4.5 10 10 28 40 2000 LT455HU/W LTM455HU/W 455 1.0 6 2 3 9 9 28 40 2000 LT455IU/W LTM455IU/W 455 1.0 6 2 2 7.5 7.5 28 40 2000 455 1.0 6 2 3 9 9 35 60 2000 LT455HTU/W LTM455HTU/W *Center Frequency 450KHz is Also Available 3 1 4 1.Input 2.Ground 3.Output 5 3 2 1 0.8 4.0 2.9 2.9 2.6 4 3 2 1 5 1.Input 2.3.4.Ground 5.Output 2 3 4 1 Test Circuit 2 LT455¡õU LTM455¡õU 3 4 4 4.0 3 R2 RF V.M S.S.G R2 RF C.M S.S.G Rg+R1=R2=Input/Output Impedance Rg+R1=R2=Input/Output Impedance Characteristics 0 10 20 30 40 50 60 410 430 450 450 480 500 Frequency(KHz) LT455BU LTM455BU LT455EU LTM455EU LT455HU LTM455HU 0 10 20 30 40 50 60 410 430 450 450 480 500 Frequency(KHz) 4.3 1.0 2.5 2.7 1.6 1.9 0.9 2 3 4 2 LT455¡õU LTM455¡õU 3 4 Rg 0.7 1 2 3 4 1 1.Input 3.4.5.Ground 2.Output 5 Rg 0.8 1 2 1 R1 1.8 5 2.4 6.3 5 4.0 1.Input 3.4.Ground 2.Output 1 R1 LT 455E W 5 6. 4.3 8.0 2 1 3 9.5 6.3 0 LT 455 EU 7. 0 7. 8.0 4.0 6.5 2.7 0.8 LT455BW LTM455BW LT455EW LTM455EW LT455HW LTM455HW 5 1.0 4.3 2 11.0 LT 455E W 4.3 8.0 LT 455 EU Mechanical Dimensions(mm) 6. Mechanical Dimensions(mm)