LTM455DU
LTM455DU Datasheet
LTM455U SERIES 4 ELEMENT CERAMIC FILTER
| Part | Datasheet |
|---|---|
LTM455DU |
LTM455DU (pdf) |
| PDF Datasheet Preview |
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| LTM455U SERIES 4 ELEMENT CERAMIC FILTER Ultra small size high selectivity type ceramic filter for communication use. • Ultra small size • mm profile • Bandwidths from 4KHz to 30KHz available • High selectivity • 4 elements OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS CENTER FREQUENCY INSERTION LOSS dB MAX. PASS BAND RIPPLE dB MAX. 6 dB BANDWIDTH KHz MIN. LTM455BU LTM455CU LTM455DU LTM455EU LTM455FU LTM455GU LTM455HU LTM455IU LTM455HTU LTM455ITU ±15 ±10 PACKAGE DIMENSIONS mm 40 dB BANDWIDTH dB MAX. ±30 ±24 ±20 ±15 ±10 ±9 ±9 STOP BAND ATT. ±100KHZ dB MIN. 27 25 35 INPUT / OUTPUT IMPEDANCE 1500 2000 INPUT OUTPUT LTMU GROUND S.S.G. RF V.M. Rg+R1=R2=input/output impedance Figure 2 LTM455U Measuring Circuit Connection 1 Input 2 Output 3 Ground 4 Ground Figure 1 LTM455U Front, Side and Bottom views 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 ➂ and xy . Attenuation dB LTM455BU LTM455EU LTM455HU 60 410 420 430 440 450 460 470 480 490 500 Frequency KHz Figure 3 LTM455U Characteristics ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • CERAMIC FILTERS 71 CERAMIC FILTERS |
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