EURO QUARTZ LTW33-455 CERAMIC FILTER •High selectivity type ceramic filters •A variety of bandwidths available •Easily mounted to PCB •Miniature size 6 Element SPECIFICATION Frequency v. Attenuation Characteristics 2.9 2.9 7.0 2.6 0 11.3 LTW 33-450B LTW 33-450D LTW 33-450H 10 4 3 2 1 4.3 20 5 8.2 2.0 Attenuation 30 (dB) 40 50 4.0 Actual size (outline top view) 60 Connections 1 Input 2, 3, 4 Ground 5 Output 70 410 420 430 440 450 460 470 480 490 500 Frequency (kHz) Outline and Dimensions ELECTRICAL CHARACTERISTICS Centre Frequency (kHz) Part Number Insertion Loss (dB max.) Pass Band Ripple (dB max.) 6dB Bandwidth (kHz min.) 50dB Bandwidth (kHz min.) 4 2 ±15 ±30 Stop Band Att. ±100kHz (dB min.) 45 Input/Output Impedance (W) LTW33-455B 455±2 1500 LTW33-455C 455±2 4 2 ±12.5 ±24 45 1500 LTW33-455D 455±1.5 6 2 ±7.5 ±15 45 1500 LTW33-455E 455±1.5 4 2 ±10 ±20 45 1500 LTW33-455F 455±1.5 6 2 ±6 ±12.5 45 2000 LTW33-455G 455±1.5 6 2 ±4.5 ±10 45 2000 LTW33-455H 455±1.0 6 2 ±3 ±9 45 2000 LTW33-455I 455±1.0 6 2 ±2 ±7.5 45 2000 LTW33-455HT 455±1.0 6 2 ±3 ±9 60 2000 LTW33-455IT 455±1.0 6 2 ±2 ±7.5 60 2000 TEST CIRCUIT Input 1 Output 5 LTW R1 2 RG 4 3 Ground R2 RF V.M. SSG 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: [email protected] www.euroquartz.co.uk