LPU-B Datasheet, PDF (1/1 Pages) EUROQUARTZ limited – CERAMIC FILTERS

EURO QUARTZ
LPU-B, LPZ-JL CERAMIC FILTERS
AM - IF 450 to 470kHz
SPECIFICATION
LPU-SERIES
3.5 _7.5
Connections
1
Input
2
Output
3
Ground
2.5
2.5
Outline and Dimensions
9.0
3.5
LPZ-SERIES ^{1 2 3}
7.0
6 5 4 ^3.6
2.5 2.5
Connections
1
Input
2, 5 Output
3, 4 Direct Coupled
6
Output
Outline and Dimensions
ELECTRICAL CHARACTERISTICS
Part
Number
3dB
Bandwidth
(kHz)
Selectivity
Insertion
-9 kHz off +9 kHz off Loss
(dB) min. (dB) min. (dB) max.
Composition
LPU455B
1-±3
(connected with IFT)
LPZ455JL
5.5±1
5(7.5)
18(20)
3(5.5)
18(20)
5(3)
7(3.5)
1 Element
with IFT
2 Elements
Direct coupling type
7.0
9.0
3.5
Item
LPU455B
1-2 2-3 4-6
Winding Specifications 70T
Unloaded Qu
Tuning Capacity
115T 7T
105
180pF
TEST CIRCUIT
LPU Series
RG
Input 1
3 Output
LPU
R1
2
Ground
R2
SSG
RF
V .M.
LPZ455JL
1 -2 2 -3 4 -6
68T 84T 14T
90
180pF
( ) = typical values
* Centre Frequency (fo) is available in
the range from 450kHz to 470kHz.
The standard tolerance of fo is
±2kHz. For synthesizers and digital
indicators a tolerance of ±1kHz is
available.
* The LP455JL series, with its two
directly coupled elements, realizes a
high degree of selectivity. The series
features excellent matching
characteristics for IFT.
LPZ Series
3 _LPZ 4
2
5
R1 ¹
6
SSG
Ground
RG=50 Ohm
3k
RF
V .M.
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] Email: [e-mail] www.euroquartz.co.uk