Outline and Dimensions
R2
R1
RG
RF
SSG
RG+R1=R2, C <50pF
1
2
3
C
Characteristics
LPP450D ±10 ±20kHz 4.0 1500 450±1
LPP459D off 40 (50) 459±1
LPP450F ±6.0 ±12.5kHz 6.0 1500 450±1
LPP459F off 40 (50) 459±1
LPP450G ±4.5 ±9kHz 6.0 2000 450±1
LPP459G off 30 (40) 459±1
LPP450H ±3.0 ±9kHz 6.0 2000 450±1
LPP459H off 40 (50) 459±1
Bandwidth
6dB
(kHz) min.
Part
Number
Selectivity
(dB) min.
Insertion Loss
(dB) max.
Centre
Frequency
(kHz)
Input/Output
Impedance
()W
8.0
8.2
4.0
7.0
2.7
4.3
0.8
Actual size
(out line top view) Connect ions
1
2
3
Input
Ground
Output
1
2
3
40
60T
LPP450H (IFT Data)
2
3
15
42
13
26
4
125T 28T
180pF
Qu
CT
CH1 A/R logMAG 10dB/REF -50dB
CH2 A/R logMAG 1dB/REF -5dB
Start 430kHz Stop 480kHz
430kHz to 480kHz
CH1A/R logMAG 10dB/REF -50dB
Start 355kHz Stop 555kHz
CH1A/R logMAG 10dB/REF -50dB
Start 10kHz Stop 1MHz
355kHz to 555kHz 10kHz to 10000kHz
( ) = typical values
SPECIFICATION TEST CIRCUIT
EURO
QUARTZ
LPP450, LPP459 CERAMIC FILTERS
AM use - 4 Element
ELECTRICAL CHARACTERISTICS
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
