ECS LTM450DW 6 element ceramic filter Datasheet

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
CENTER
FREQUENCY
(KHz)
PART NUMBER
LTM450BW
LTM450CW
LTM450DW
LTM450EW
LTM450FW
LTM450GW
LTM450HW
LTM450IW
LTM450HTW
LTM450ITW
450
450
450
450
450
450
450
450
450
450
INSERTION
LOSS
(dB) MAX.
PASS BAND
RIPPLE
(dB) MAX.
6 dB
BANDWIDTH
(KHz) MIN.
50 dB
BANDWIDTH
(dB) MAX.
STOP BAND ATT.
±100KHZ
(dB) MIN.
INPUT / OUTPUT
IMPEDANCE
(Ω)
4
4
4
6
6
6
6
6
6
6
2
2
2
2
2
2
2
2
2
2
±15
±12.5
±10
±7.5
±6
±4.5
±3
±2
±3
±2
±30
±24
±20
±15
±12.5
±10
±9
±7.5
±9
±7.5
45
45
45
45
45
45
55
55
60
60
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
±2.0
±2.0
±1.5
±1.5
±1.5
±1.5
±1.0
±1.0
±1.0
±1.0
PACKAGE DIMENSIONS (mm)
6.4
9.5
2
1
LTM
6.3
3
4
RF
V.M.
5
Rg
R2
2.2
S.S.G.
Rg+R1=R2=input/output impedance
7.1
Connection
3
4
5
Figure 2) LTM450W – Measuring Circuit
1 Input
2
1
3 Ground
0
4 Ground
7.1
2.6
LTM450BW
10
5 Ground
Attenuation (dB)
4.3
2 Output
2.9
LTM450EW
20
LTM450HW
30
40
50
60
Figure 1) LTM450W – Front, Side and Bottom views
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 ⑤ and ②➂④).
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
Similar pages