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...
Description
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 LPB 450J CENTER FREQUENCY (fo) 450 ±2.0 KHz 3dB BANDWIDTH 5.5 ±1.5 KHz SELECTIVITY (±9 KHZ OFF) 17 dB Min. (23) INSERTION LOSS 6 dB Max. (3)
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
PACKAGE DIMENSIONS (mm)
9.0 ±0.3 2.6 ±0.3
R1 1
3
FILTER
5.0 ±0.3
Rg
2
S.S.G.
E1
R2
RF E2 V.M.
0.15 ±0.03
3.5 ±0.5
R1 + Rg = 3.0 KΩ Insertion Loss = 2xlog(E1/2/E2)
0.7
Connection
1 Input 2 Ground 3 Output
2.5 ±0.2 1 2 3 0.7
Connection
1 Input 2 Ground 3 Output
Figure 2) Measuring Circuit
2.5 ±0.2 2.5 ±0.2
Figure 1) LPBJ Series – Front, Side and Bottom views
ITEM \ TYPE
WINDING SPECIFICATIONS
3 2 4
x—y
85 T
7 x 7 mm IFT y— — 67 T 90 180pF 23 T
x—y
84 T
5 x 5 mm IFT y— — 98 T 65 180pF 33 T
Bottom view
6
1
UNLOADED Qu TUNING CAPACITY
Figure 3) LPBJ – Recommended IFT Specification
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ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 913-782-7787 800-237-1041 FAX 913-782-6991 WWW.ECSXTAL.COM CERAMIC FILTERS
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