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參數(shù)資料
| 型號： | B3571 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 67K |
| 代理商： | B3571 |
4
Dec 15, 1999
SAW Components
Low-loss Filter
Data Sheet
B3571
868,60 MHz
Matching network to 50
(element values depend on pcb layout and equivalent circuit
)
C
p1
= 3,3 pF
L
s2
= 15 nH
L
s3
= 15 nH
C
p4
= 3,3 pF
Minimising the crosstalk
For a good ultimate rejection a low crosstalk is necessary. Low crosstalk can be realised with
a good RF layout.
Grounding pins for input transducer are pin 1,3 and for output transducer 5,7. Close to those
pins via holes (through holes) should be placed to achieve a low impedance path to system
ground. If a grounding plane at the top side of the PCB is present, the grounding plane can be
connected to pin 1,3,5,7 at the top side too.
The optimised PCB layout, including matching network for transformation to 50 Ohm, is shown
here.
Optimised PCB layout for SAW filters in QCC8C package, pinning 2,6 (top side, scale 1:1)
The bottom side is a copper plane (system ground area).
For good contact of the upper grounding area with the lower side it is necessary to place
enough via holes.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| B3572 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| B3573 | 制造商:EPCOS 制造商全稱:EPCOS 功能描述:SAW Components Low-loss Filter 869,60 MHz |
| B3574 | 制造商:EPCOS 制造商全稱:EPCOS 功能描述:Low Loss Filter |
| B3574_1 | 制造商:EPCOS 制造商全稱:EPCOS 功能描述:Low Loss Filter |
| B3575 | 制造商:EPCOS 制造商全稱:EPCOS 功能描述:SAW Components Low Loss Filter 433,92 MHz |
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