LPBJ Datasheet, PDF (1/1 Pages) ECS, Inc. – 2 ELEMENT CERAMIC FILTER

LPBJ SERIES 2 ELEMENT CERAMIC FILTER
The LPBJ Series is a ceramic filter for
AM use.
FEATURES
• AM use
• IF filter
• 2 elements
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PART NUMBER
CENTER
FREQUENCY (fo)
3dB
BANDWIDTH
LPB 450J
450 ±2.0 KHz
5.5 ±1.5 KHz
1. Center frequency is available in a range from 450 to 470 KHz.
2. Center frequency shall be defined as the central value of the band at 3dB.
3. Temperatue coefficient of center frequency is based on the center frequency @ 25˚C.
( ) = Typical values
SELECTIVITY
(±9 KHZ OFF)
17 dB Min. (23)
INSERTION
LOSS
6 dB Max. (3)
PACKAGE DIMENSIONS (mm)
9.0 ±0.3
2.6 ±0.3
R1 1
3
FILTER
Rg
2
S.S.G.
E1
R2
RF _E2
V.M.
0.15 ±0.03
2.5 ±0.2
1
2
3
2.5 ±0.2 2.5 ±0.2
0.7
Connection
1 Input
2 Ground
3 Output
Figure 1) LPBJ Series – Front, Side and Bottom views
R1 + Rg = 3.0 KΩ
Insertion Loss = 2xlog(E1/2/E2)
Connection
1 Input
2 Ground
3 Output
Figure 2) Measuring Circuit
ITEM \ TYPE
WINDING SPECIFICATIONS
3
4
2
Bottom
view
1
6
UNLOADED Qu
TUNING CAPACITY
7 x 7 mm IFT
x—y y—Ž —‘
5 x 5 mm IFT
x—y y—Ž —‘
85 T
67 T
23 T
84 T
98 T
33 T
90
180pF
Figure 3) LPBJ – Recommended IFT Specification
65
180pF
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX [phone] • WWW.ECSXTAL.COM
CERAMIC FILTERS 67 CERAMIC FILTERS