LTM450W 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 Compliant (Note 7 exemption) • 6 elements OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS CENTER FREQUENCY (KHz) PART NUMBER LTM450BW LTM450CW LTM450DW LTM450EW LTM450FW LTM450GW LTM450HW LTM450IW LTM450HTW LTM450ITW 450 450 450 450 450 450 450 450 450 450 INSERTION LOSS (dB) MAX. PASS BAND RIPPLE (dB) MAX. 6 dB BANDWIDTH (KHz) MIN. 50 dB BANDWIDTH (dB) MAX. STOP BAND ATT. ±100KHZ (dB) MIN. INPUT / OUTPUT IMPEDANCE (Ω) 4 4 4 6 6 6 6 6 6 6 2 2 2 2 2 2 2 2 2 2 ±15 ±12.5 ±10 ±7.5 ±6 ±4.5 ±3 ±2 ±3 ±2 ±30 ±24 ±20 ±15 ±12.5 ±10 ±9 ±7.5 ±9 ±7.5 45 45 45 45 45 45 55 55 60 60 1500 1500 1500 1500 2000 2000 2000 2000 2000 2000 ±2.0 ±2.0 ±1.5 ±1.5 ±1.5 ±1.5 ±1.0 ±1.0 ±1.0 ±1.0 PACKAGE DIMENSIONS (mm) 6.4 9.5 2 1 LTM 6.3 3 4 RF V.M. 5 Rg R2 2.2 S.S.G. Rg+R1=R2=input/output impedance 7.1 Connection 3 4 5 Figure 2) LTM450W – Measuring Circuit 1 Input 2 1 3 Ground 0 4 Ground 7.1 2.6 LTM450BW 10 5 Ground Attenuation (dB) 4.3 2 Output 2.9 LTM450EW 20 LTM450HW 30 40 50 60 Figure 1) LTM450W – Front, Side and Bottom views 410 420 430 440 450 460 470 480 490 500 Frequency (KHz) 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 ⑤ and ②➂④). Figure 3) LTM450W – 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 79 CERAMIC FILTERS