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LTM450W SERIES
6 ELEMENT CERAMIC FILTER
Ultra small size high selectivity type ceramic filter for communication use.
FEATURES
* Ultra small size * 6.3 mm profile * Broad bandwidth * RoHS Compliant (Note 7 exemption) * 6 elements
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PART NUMBER LTM450BW LTM450CW LTM450DW LTM450EW LTM450FW LTM450GW LTM450HW LTM450IW LTM450HTW LTM450ITW CENTER FREQUENCY (KHz) 450 450 450 450 450 450 450 450 450 450 2.0 2.0 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 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 6 dB BANDWIDTH (KHz) MIN. 15 12.5 10 7.5 6 4.5 3 2 3 2 50 dB BANDWIDTH (dB) MAX. 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 () 1500 1500 1500 1500 2000 2000 2000 2000 2000 2000
PACKAGE DIMENSIONS (mm)
9.5 6.4
1 2
LTM
3 4 5
6.3
Rg
RF V.M. R2
S.S.G.
2.2
Rg+R1=R2=input/output impedance
7.1
Connection
3 4 5
1 Input 2 Output
Figure 2) LTM450W - Measuring Circuit
4.3
3 Ground 4 Ground 5 Ground
0 10
LTM450BW LTM450EW
1
2
Attenuation (dB)
20 30 40 50
LTM450HW
7.1 2.6 2.9
Figure 1) LTM450W - Front, Side and Bottom views
60
410 420 430 440 450 460 470 480 490 500
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 | and y{).
Frequency (KHz)
Figure 3) LTM450W - Characteristics
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 * 913-782-7787 * 800-237-1041 * FAX 913-782-6991 * WWW.ECSXTAL.COM CERAMIC FILTERS 79 CERAMIC FILTERS

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