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| EUROQUARTZ *High selectivity type ceramic filters *A variety of bandwidths available *Easily mounted to PCB *Miniature size LTM-455W CERAMIC FILTER 6 Element SPECIFICATION Frequency v. Attenuation Characteristics 2.4 2.6 2.9 3 1 0.9 7.1 2.2 Connections 1 Input 2 Output 3,4,5 Ground 4 2 5 4.3 6.3 6.4 9.5 0 10 20 Attenuation 30 (dB) 40 50 60 70 410 420 430 440 450 460 470 480 490 500 Frequency (kHz) LTM-455BW LTM-455EW LTM-455HW Actual size (outline top view) Outline and Dimensions ELECTRICAL CHARACTERISTICS Part Number LTM 455BW LTM 455CW LTM 455DW LTM 455EW LTM 455FW LTM 455GW LTM 455HW LTM 455IW LTM 455HTW LTM 455ITW Centre Frequency (kHz) 4552 4552 4551.5 4551.5 4551.5 4551.5 4551.0 4551.0 4551.0 4551.0 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 6dB Bandwidth (kHz min.) 15 12.5 10 7.5 6 4.5 3 2 3 2 50dB Bandwidth (kHz min.) 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 55 55 60 60 Input/Output Impedance (W) 1500 1500 1500 1500 2000 2000 2000 2000 2000 2000 TEST CIRCUIT Input 1 R1 RG LTW Output 5 2 3 Ground SSG 4 R2 RF V.M. RG+R1=R2=Input/Output Impedance EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk www.euroquartz.co.uk |
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