View LTM450BU_4541730.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

LTM450U SERIES
4 ELEMENT CERAMIC FILTER
Ultra small size high selectivity type ceramic filter for communication use.
FEATURES
* Ultra small size * 6.5 mm profile * Bandwidths from 4KHz to 30KHz available * RoHS Compliant (Note 7 exemption) * 4 elements
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PART NUMBER LTM450BU LTM450CU LTM450DU LTM450EU LTM450FU LTM450GU LTM450HU LTM450IU LTM450HTU LTM450ITU CENTER FREQUENCY (KHz) 450 450 450 450 450 450 450 450 450 450 2.0 2.0 1.5 1.5 1.5 1.0 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 40 dB BANDWIDTH (dB) MAX. 30 24 20 15 12.5 10 9 7.5 9 7.5 STOP BAND ATT. 100KHZ (dB) MIN. 27 27 27 27 27 25 25 25 35 35 INPUT / OUTPUT IMPEDANCE () 1500 1500 1500 1500 2000 2000 2000 2000 2000 2000
PACKAGE DIMENSIONS (mm)
7 7
INPUT OUTPUT
R1
6.5
1
2
LTMU
3 4
GROUND
Rg
GROUND
R2
S.S.G.
4
RF V.M.
0.8
Rg+R1=R2=input/output impedance
2.4 1.8 0.8
4.3
Figure 2) LTM450U - Measuring Circuit
1
2
Connection
1 Input
0 10
LTM455BU LTM455EU
4.3
2 Output 3 Ground 4 Ground
Attenuation (dB)
3
4
20 30 40 50
LTM455HU
2.4 1.8 0.8
Figure 1) LTM450U - Front, Side and Bottom views
60 410 420 430 440 450 460 470 480 490 500
Frequency (KHz)
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 xy).
Figure 3) LTM4550U - 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 78 CERAMIC FILTERS

▲Up To Search▲

Price & Availability of LTM450BU

	To Download LTM450BU Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .