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參數資料
| 型號： | TFS211 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | VI SAW濾波器(VI SAW Filter) |
| 中文描述： | 1 FUNCTIONS, 211 MHz, SAW FILTER |
| 封裝： | ROHS COMPLIANT PACKAGE-10 |
| 文件頁數： | 1/3頁 |
| 文件大小： | 17K |
| 代理商： | TFS211 |
Ltp: tft030
______________________________________________________________________________________________________
VI
TELEFILTER
Application Note
______________________________________________________________________________________________________
1. General
The filter is symmetrical, i.e. input and output are exchangeable with each other. But the
external coupling coil has to be connected to pin 3 in any case.
The filter can be driven unbalanced only..
The termination impedances are :
360 Ohm || -3.7 pF
This impedance is equal for the input and the output. It has to be realised at the point were the
filter is mounted. To match this impedance to the impedance of the system a matching circuit
is required.
2. Theoretical matching
For the matching of termination impedances to 50 Ohm there can be used two different
matching circuits
50 Ohm Test circuit 1
50 Ohm
L1
version 1.0
22.09.2000
TFS 211
1/3
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
1
6
2, 4, 5, 7, 8, 9, 10
50 Ohm
SAW
C1
C2
L2
L3
3
The theoretical values of the stated elements are:
L1 = L2 = 93.9 nH, C1 = C2 = 1.52 pF, L3 = 105 nH
50 Ohm Test circuit 2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TFS211_06 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS211-1 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS211-1_05 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS211A | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
| TFS211B | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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