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

LPUB / LPZJL SERIES CERAMIC FILTER
FEATURES
• AM use
• RoHS Compliant (Note 7 exemption)
LPU 455B
LPZ 455JL
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PART NUMBER
LPU455B - (connected with IFT)
LPZ455JL - (connected with IFT)
3dB
BANDWIDTH (KHz)
10 ±3
5.5 ±1
SELECTIVITY
SELECTIVITY
-9 KHZ OFF (dB) MIN. +9 KHZ OFF (dB) MIN.
5 (7.5)
3 (5.5)
18 (20)
18 (20)
INSERTION
LOSS (dB) MAX.
5 (3)
7 (3.5)
COMPOSITION
1 Element with IFT
2 Elements Direct Coupling Type
• Center frequency (fo) is available in a range of 450 to 470KHz. The standard tolerance of fo is ±2KHz. For synthesizers and digital indicators, ±1KHz tolerance is also available.
• The LPZ455JL series, with its two directly coupled elements, has a high degree of selectivity. The series features excellent matching characteristics for IFT.
( ) = Typical values
PACKAGE DIMENSIONS (mm)
7.5
3.5
321
2.5 2.5
Connection
1 Input
2 Ground
3 Output
Figure 1) LPU455B – Front and Side views
7.0 ±0.3
7.0 ±0.3
ITEM \ TYPE
WINDING SPECIFICATIONS
3
4
2
Bottom
view
1
6
UNLOADED Qu
TUNING CAPACITY
LPU
B
x—y y—➂ ➃—➅
LPZ
JL
x—y y—➂ ➃—➅
70 T
115 T
7T
68 T
84 T
14 T
105
180pF
Figure 3) Recommended IFT Specifications
90
180pF
INPUT
R1 ¹
OUTPUT
3
LPU
Rg
GROUND 2
R2
S.S.G.
Rg+R1=R2=input/output impedance
RF
V.M.
321
2.5 2.5
123
654
2.5 2.5
3.6
Connection
1 Input
2 Ground
3 Direct Coupled
4 Direct Coupled
5 Ground
6 Output
Figure 2) LPZ455JL – Front, Side and Bottom views
Figure 4) LPU Series – Measuring Circuit
3
4
3K
2
LPZ
5
S.S.G.
Rg = 50Ω
1 6 3K
1 : Input
5 2 : Ground
4 3 : Direct Coupled
6 : Output
RF
V.M.
Figure 5) LPZ Series – Measuring Circuit
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX [phone] • WWW.ECSXTAL.COM
CERAMIC FILTERS 82 CERAMIC FILTERS