LTM450W
SERIES
FEATURES
鈥?Ultra small size
鈥?6.3 mm profile
鈥?Broad bandwidth
鈥?High selectivity
鈥?6 elements
6 ELEMENT CERAMIC FILTER
Ultra small size high selectivity type ceramic filter for
communication use.
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
鹵2.0
鹵2.0
鹵1.5
鹵1.5
鹵1.5
鹵1.5
鹵1.0
鹵1.0
鹵1.0
鹵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.
鹵15
鹵12.5
鹵10
鹵7.5
鹵6
鹵4.5
鹵3
鹵2
鹵3
鹵2
50 dB
BANDWIDTH
(dB) MAX.
鹵30
鹵24
鹵20
鹵15
鹵12.5
鹵10
鹵9
鹵7.5
鹵9
鹵7.5
STOP BAND ATT.
鹵100KHZ
(dB) MIN.
45
45
45
45
45
45
55
55
60
60
INPUT / OUTPUT
IMPEDANCE
(鈩?
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
PACKAGE DIMENSIONS (mm)
9.5
6.4
6.3
1
2
LTM
3
4
5
Rg
RF
V.M.
R2
2.2
S.S.G.
Rg+R1=R2=input/output impedance
7.1
Connection
3
4
5
1 Input
2 Output
Figure 2) LTM450W 鈥?Measuring Circuit
4.3
3 Ground
4 Ground
5 Ground
1
2
0
10
LTM450BW
LTM450EW
Attenuation (dB)
7.1
2.6
2.9
20
30
40
50
60
LTM450HW
Figure 1) LTM450W 鈥?Front, Side and Bottom views
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
鈭?/div>
and
鈮犅?.
410 420 430 440 450 460 470 480 490 500
Frequency (KHz)
Figure 3) LTM450W 鈥?Characteristics
RXD TECHNOLOGIES, LLC.,
15004 W. 106TH, Lenexa, KS 66215
Visit us online at www.rxdtech.com
53
913-307-0188 FAX 913-307-0504
800-228-8108
1
