LTM455W Datasheet, PDF (1/1 Pages) auris-GmbH – Filter THT

LTM455W 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 Compliante (Note 7 exemption)
• 6 elements
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PART NUMBER
CENTER
FREQUENCY
(KHz)
INSERTION
LOSS
(dB) MAX.
PASS BAND
RIPPLE
(dB) MAX.
6 dB
BANDWIDTH
(KHz) MIN.
LTM455BW
LTM455CW
LTM455DW
LTM455EW
LTM455FW
LTM455GW
LTM455HW
LTM455IW
LTM455HTW
LTM455ITW
455 ±2.0
4
455 ±2.0
4
455 ±1.5
4
455 ±1.5
6
455 ±1.5
6
455 ±1.5
6
455 ±1.0
6
455 ±1.0
6
455 ±1.0
6
455 ±1.0
6
2
±15
2
±12.5
2
±10
2
±7.5
2
±6
2
±4.5
2
±3
2
±2
2
±3
2
±2
PACKAGE DIMENSIONS (mm)
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
45
45
60
60
INPUT / OUTPUT
IMPEDANCE
(Ω)
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
9.5
6.4
7.1
3
4
5
1
2
Connection
1 Input
2 Output
3 Ground
4 Ground
5 Ground
7.1
2.6 2.9
Figure 1) LTM455W – 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 y➂{).
Rg
S.S.G.
1
LTM
3
4
2
5
R2
Rg+R1=R2=input/output impedance
RF
V.M.
Figure 2) LTM455W – Measuring Circuit
0
LTM455BW
10
LTM455EW
20
LTM455HW
30
40
50
60
410 420 430 440 450 460 470 480 490 500
Frequency (KHz)
Figure 3) LTM455W – Characteristics
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX [phone] • WWW.ECSXTAL.COM
CERAMIC FILTERS 81 CERAMIC FILTERS