EURO
QUARTZ
•
High selectivity type ceramic filters
•
A variety of bandwidths available
•
Easily mounted to PCB
•
Miniature size
LTM-455W CERAMIC FILTER
6 Element
SPECIFICATION
Frequency v. Attenuation Characteristics
2.4 2.6 2.9
3
1
0.9
7.1
2.2
Connections
1
Input
2
Output
3,4,5
Ground
4
2
5
4.3
6.3
6.4
9.5
0
10
20
Attenuation 30
(dB)
40
50
60
70
410 420 430 440 450 460 470 480 490 500
Frequency (kHz)
LTM-455BW
LTM-455EW
LTM-455HW
Actual size
(outline top view)
Outline and Dimensions
ELECTRICAL CHARACTERISTICS
Part
Number
LTM 455BW
LTM 455CW
LTM 455DW
LTM 455EW
LTM 455FW
LTM 455GW
LTM 455HW
LTM 455IW
LTM 455HTW
LTM 455ITW
Centre
Frequency
(kHz)
455±2
455±2
455±1.5
455±1.5
455±1.5
455±1.5
455±1.0
455±1.0
455±1.0
455±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
6dB
Bandwidth
(kHz min.)
±15
±12.5
±10
±7.5
±6
±4.5
±3
±2
±3
±2
50dB
Bandwidth
(kHz min.)
±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
(
W
)
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
TEST CIRCUIT
Input 1
R1
RG
LTW
Output 5
2
3
Ground
SSG
4
R2
RF
V.M.
RG+R1=R2=Input/Output Impedance
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk www.euroquartz.co.uk
EUROQUARTZ [ EUROQUARTZ LIMITED ]
