LTM455FW

LTM455W SERIES 6 ELEMENT CERAMIC FILTER Ultra small size high selectivity type ceramic filter for communication use. FEATURES • Ultra small size • 6.3 mm profile • Broad bandwidth • RoHS Compliante (Note 7 exemption) • 6 elements OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PART NUMBER LTM455BW LTM455CW LTM455DW LTM455EW LTM455FW LTM455GW LTM455HW LTM455IW LTM455HTW LTM455ITW CENTER FREQUENCY (KHz) 455 455 455 455 455 455 455 455 455 455 ±2.0 ±2.0 ±1.5 ±1.5 ±1.5 ±1.5 ±1.0 ±1.0 ±1.0 ±1.0 INSERTION LOSS (dB) MAX. 4 4 4 6 6 6 6 6 6 6 PASS BAND RIPPLE (dB) MAX. 2 2 2 2 2 2 2 2 2 2 6 dB BANDWIDTH (KHz) MIN. ±15 ±12.5 ±10 ±7.5 ±6 ±4.5 ±3 ±2 ±3 ±2 50 dB BANDWIDTH (dB) MAX. ±30 ±24 ±20 ±15 ±12.5 ±10 ±9 ±7.5 ±9 ±7.5 STOP BAND ATT. ±100KHZ (dB) MIN. 45 45 45 45 45 45 45 45 60 60 INPUT / OUTPUT IMPEDANCE (Ω) 1500 1500 1500 1500 2000 2000 2000 2000 2000 2000 PACKAGE DIMENSIONS (mm) 9.5 6.4 1 2 LTM 3 4 5 6.3 Rg RF V.M. R2 S.S.G. 2.2 Rg+R1=R2=input/output impedance 7.1 Connection 3 4 5 1 Input 2 Output Figure 2) LTM455W – Measuring Circuit 4.3 3 Ground 4 Ground 5 Ground 0 10 LTM455BW LTM455EW 1 2 Attenuation (dB) 20 30 40 50 LTM455HW 7.1 2.6 2.9 Figure 1) LTM455W – Front, Side and Bottom views 60 410 420 430 440 450 460 470 480 490 500 Note: To avoid potential problems, connect the output to an IF amplifier through a DC cut capacitor. Avoid applying a direct current to output end of the ceramic filters (between | and y➂{). Frequency (KHz) Figure 3) LTM455W – Characteristics ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM CERAMIC FILTERS 81 CERAMIC FILTERS