LPB-J Datasheet, PDF (1/1 Pages) EUROQUARTZ limited – CERAMIC FILTERS

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
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] Email: [e-mail] www.euroquartz.co.uk