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EURO QUARTZ
LPB-J CERAMIC FILTERS
AM use - 2 Element
SPECIFICATION
123
2.6 9.0
2.5 2.5
Connections
1
Input
2
Ground
3
Output
Outline and Dimensions
5.0 3.5
ELECTRICAL CHARACTERISTICS
Part Number
Centre Frequency
(fo)
3dB Bandwidth
Selectivity (±9kHz off)
Insertion Loss (dB) max.
LPB 450J
450±2.0kHz 5.5±1.5kHz
TEST CIRCUIT
1 R1 RG
2 E1 SSG
3 R2
E2 RF
17dB min. (23)
6dB max. (3)
( ) = typical values
R1+RG=R2=3.0kOhm Insertion Loss = 2xlog(E1/2E2)
Recommended IFT Specifications
Item
3
4
2
1
5
7mm x 7mm IFT 12 23 46 85T 67T 23T
5mm x 5mm IFT 12 23 46 84T 98T 33T
Unloaded Qu Tuning Capacity
90 180pF
65 180pF
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