LTM455DU ECS Inc, LTM455DU Datasheet
LTM455DU
Manufacturer Part Number
LTM455DU
Description
ELEMENT CERAMIC FILTER 455KHZ
Manufacturer
ECS Inc
Series
LTM455Ur
Datasheet
1.LTM455DU.pdf
(1 pages)
Specifications of LTM455DU
Frequency
455kHz Center
Impedance
1.5K Ohm
Filter Type
AM
Insertion Loss
4dB
Package / Case
Radial
Mounting Type
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Bandwidth
-
Lead Free Status / Rohs Status
Details
Other names
Q1433731
LTM455U
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PACKAGE DIMENSIONS (mm)
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
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
PART NUMBER
LTM455BU
LTM455CU
LTM455DU
LTM455EU
LTM455FU
LTM455GU
LTM455HU
LTM455IU
LTM45HTU
LTM45ITU
2.4 1.8 0.8
1
2.4 1.8 0.8
and
Figure 1) LTM455U – Front, Side and Bottom views
3
7
).
2
4
FREQUENCY
455 ±2.0
455 ±2.0
455 ±1.5
455 ±1.5
455 ±1.5
455 ±1.0
455 ±1.0
455 ±1.0
455 ±1.0
455 ±1.0
CENTER
SERIES
(KHz)
Connection
1
2
3
4
0.8
Input
Output
Ground
Ground
4.3
INSERTION
(dB) MAX.
7
4 ELEMENT CERAMIC FILTER
Ultra small size high selectivity type ceramic
filter for communication use.
LOSS
4
4
4
6
6
6
6
6
6
6
CERAMIC FILTERS
PASS BAND
(dB) MAX.
RIPPLE
2
2
2
2
2
2
2
2
2
2
80
BANDWIDTH
(KHz) MIN.
±12.5
6 dB
±7.5
±4.5
CERAMIC FILTERS
±15
±10
±6
±3
±2
±3
±2
10
20
30
40
50
60
BANDWIDTH
0
410 420 430 440 450 460 470 480 490 500
• Ultra small size
• 6.5 mm profile
• Bandwidths from 4KHz to 30KHz available
• RoHS Compliant (Note 7 exemption)
• 4 elements
(dB) MAX.
FEATURES
Rg+R1=R2=input/output impedance
Rg
40 dB
±12.5
±7.5
±7.5
±30
±24
±20
±15
±10
±9
±9
R1
S.S.G.
Figure 2) LTM455U – Measuring Circuit
Figure 3) LTM455U – Characteristics
INPUT
1
GROUND
Frequency (KHz)
STOP BAND ATT.
3
LTMU
(dB) MIN.
±100KHZ
GROUND
27
27
27
27
27
25
25
25
35
35
4
OUTPUT
2
R2
INPUT / OUTPUT
LTM455BU
LTM455EU
LTM455HU
IMPEDANCE
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
( )
RF
V.M.
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