LTM450W
SERIES
FEATURES
• Ultra small size
• 6.3 mm profile
• Broad bandwidth
• High selectivity
• 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
±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
(Ω)
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 – 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 – 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
∞
and
≠¬Ø).
410 420 430 440 450 460 470 480 490 500
Frequency (KHz)
Figure 3) LTM450W – 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
微控制器 MCU
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