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参数资料
| 型号： | LPB450J |
| 厂商： | ECS INC INTERNATIONAL |
| 英文描述： | 0.45 MHz, CERAMIC BPF |
| 封装： | ROHS COMPLIANT PACKAGE-3 |
| 文件页数： | 1/1页 |
| 文件大小： | 229K |
| 代理商： | LPB450J |
67
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 913-782-7787 800-237-1041 FAX 913-782-6991 WWW.ECSXTAL.COM
CERAMIC FILTERS
2.5
±0.2
0.15
±0.03
2.6
±0.3
0.7
5.0
±0.3
3.5
±0.5
9.0
±0.3
Connection
Input
Ground
Output
3
2
1
2.5
±0.2 2.5 ±0.2
0.7
1
2
3
LPBJ SERIES
2 ELEMENT CERAMIC FILTER
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
CENTER
3dB
SELECTIVITY
INSERTION
PART NUMBER
FREQUENCY (fo)
BANDWIDTH
(±9 KHZ OFF)
LOSS
LPB 450J
450 ±2.0 KHz
5.5 ±1.5 KHz
17 dB Min. (23)
6 dB Max. (3)
Figure 1) LPBJ Series – Front, Side and Bottom views
The LPBJ Series is a ceramic filter for
AM use.
FEATURES
AM use
IF filter
2 elements
PACKAGE DIMENSIONS (mm)
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 @ 25C.
( ) = Typical values
ITEM \ TYPE
7 x 7 mm IFT
5 x 5 mm IFT
x—yy——x—yy——
85 T
67 T
23 T
84 T
98 T
33 T
UNLOADED Qu
90
65
TUNING CAPACITY
180pF
3
4
2
1
6
WINDING SPECIFICATIONS
Bottom
view
R1
Rg
R1 + Rg = 3.0 K
Insertion Loss = 2xlog(E1/2/E2)
S.S.G.
FILTER
E2
E1
RF
V.M.
R2
1
2
3
Connection
Input
Ground
Output
3
2
1
Figure 2) Measuring Circuit
Figure 3) LPBJ – Recommended IFT Specification
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