EURO
QUARTZ
•
High selectivity type ceramic filters
•
Pass bandwidths from 30kHz to 4MHz
•
Easily mounted to PCB
•
Miniature size
LTE CERAMIC FILTER
TV SIF Stage
SPECIFICATION
LTE 4.5MB Frequency v. Attenuation Characteristics
3.0±1
7.5±2
0
9.0±2
10
Attenuation
(dB)
20
0.3±0.1
0.6±0.1
5.0±2
Connections
1 Input
2 Ground
3 Output
2.5±0.2
3
2
2.5±0.2
1
30
4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
Frequency (MHz)
Outline and Dimensions
ELECTRICAL CHARACTERISTICS
Part
Number
3dB Bandwidth
(kHz) min.
20dB Bandwidth
(kHz) max.
Insertion Loss
(dB) max.
Spurious Response
(dB) min.
Input/Output
Impedance
(
W
)
1000
600
470
470
LTE 4.5 MB
LTE 5.5 MB
LTE 6.0 MB
LTE 6.5 MB
+60(±105)
+75(±120)
+80(±130)
+80(±130)
530(420)
550(470)
600(500)
630(530)
6(4)
6(3)
6(2.5)
6(2.5)
20(4.5+0.8, 1.0MHz)
25(5.5±1.0MHz)
25(6.0±1.0MHz)
25(6.5±1.0MHz)
( ) = typical values
LTE 4.5MB Spurious characteristics (0 to 10MHz)
0
10
20
TEST CIRCUIT
Input 1
LTE
R1
Output 3
2
RG
Ground
SSG
R2
C
RF
V.M.
Attenuation 30
(dB)
40
50
60
70
RG+R1=R2=Input/Output Impedance
C=10pF (Including stray capacitance
and input capacitance of RF Voltmeter)
0
1
2
3
4
5
6
7
8
9
10
Frequency (MHz)
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
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