EURO QUARTZ LPP450, LPP459 CERAMIC FILTERS AM use - 4 Element SPECIFICATION TEST CIRCUIT 3 1 7.0 2 1 8.0 R1 RG 3 0.8 2 4.3 8.2 C R2 RF SSG 2.7 RG+R1=R2, C <50pF 4.0 Actual size (outline top view) LPP450H (IFT Data) Outline and Dimensions Connections 1 Input 2 Ground 3 Output 4 3 2 1 5 1 2 2 3 4 6 60T 125T 28T Qu CT 40 180pF ELECTRICAL CHARACTERISTICS Part Number LPP450D Bandwidth 6dB (kHz) min. 10 LPP459D LPP450F 6.0 Input/Output Impedance (W) Centre Frequency (kHz) 20kHz 4.0 1500 4501 12.5kHz 4591 6.0 1500 off 40 (50) 4.5 LPP459G LPP450H Insertion Loss (dB) max. off 40 (50) LPP459F LPP450G Selectivity (dB) min. 9kHz 4591 6.0 2000 off 30 (40) 3.0 LPP459H 9kHz 4501 4591 6.0 2000 off 40 (50) Characteristics 430kHz to 480kHz 4501 4501 4591 ( ) = typical values 355kHz to 555kHz 10kHz to 10000kHz CH1 A/R logMAG 10dB/REF -50dB CH2 A/R logMAG 1dB/REF -5dB CH1 A/R logMAG 10dB/REF -50dB CH1 A/R logMAG 10dB/REF -50dB Start 430kHz Start 355kHz Start 10kHz Stop 480kHz Stop 555kHz Stop 1MHz 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