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LTU455B2 Datasheet(PDF) 1 Page - AEL Crystals Ltd |
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LTU455B2 Datasheet(HTML) 1 Page - AEL Crystals Ltd |
1 / 2 page FEATURES APPLICATIONS Specify Ceramic Filter LTU Series 455kHz or 450kHz q u a r t z b a s e d f r e q u e n c y c o n t r o l c o m p o n e n t s Order Hotline +44 1293 524245 www.aelcrystals.co.uk sales@aelcrystals.co.uk 44 SP EC IF IC A TI O N 8 7 8.2 4 To take the best advantage of the safety feature of ceramic filters, connect output to anIF amplifier through a DC cut capacitor. Avoid directly applying DC to output end of ceramic filters (Between 5 & 2,3,4) 2 1 3 2.7 4.3 Pin Connections 1 = Input 2 = Ground 3 = Output High Selectivity Low Cost Wide Range of bandwidths Available Industry Standard Outline & Pinout Communications Equipment F R E Q U E N C Y C H A R A C T E R I S T I C S Pa rt Numb er Centre Freq (M Hz) Insertion Loss (dB Max) Pass Band Ripple (dB Max) 6 dB Bandwidth (kHz Min) 40 dB Bandwidth (kHz Min) Stopband Att. + / -100kHz (d B M in ) Input/Output Impedence ( ) LTU455B2 455 +/ -2.0 4 2 +/-15.0 +/ -30.0 27 1500 LTU455C2 455 +/ -2.0 4 2 +/-12.5 +/ -24.0 27 1500 LTU455D2 455 +/ -1.5 4 2 +/-10.0 +/ -20.0 27 1500 LTU455E2 455 +/ -1.5 6 2 +/- 7.5 +/-15.0 27 1500 LTU455F2 455 +/ -1.5 6 2 +/- 6.0 +/-12.5 27 2000 LTU455G2 455 +/ -1.5 6 2 +/- 4.5 +/-10.0 25 2000 LTU455H2 455 +/ -1.0 6 2 +/- 3.0 +/- 9.0 25 2000 LTU455I2 455 +/ -1.0 6 2 +/- 2.0 +/- 7.5 25 2000 LTU455HT 455 +/ -1.0 6 2 +/- 3.0 +/- 9.0 35 2000 RF V.M C R2 S.S.G R1 LTU 1 3 2 Rg Rg+R1+R2=input/Output Impedence C=10pF (Including strays and input/output capacitance of RF Voltmeter 400 410 420 430 440 450 460 470 480 490 500 0 10 20 30 40 50 60 Freq (kHz) LTU 455B2 LTU 455E2 LTU 455H2 Frequency Characteristics Test Circuit www.aelcrystals.co.uk |
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