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參數資料
| 型號： | TFS390 |
| 廠商： | Vectron International, Inc. |
| 英文描述： | VI SAW濾波器(VI SAW Filter) |
| 中文描述： | 六聲濾波器（SAW濾波器六） |
| 文件頁數： | 1/2頁 |
| 文件大小： | 13K |
| 代理商： | TFS390 |
Ltp: tft035
______________________________________________________________________________________________________
VI
TELEFILTER
Application Note
______________________________________________________________________________________________________
1. General
The filter is single ended driven. It is matched to 50
The matching element values given below are valid on the test PCB. If the parasitics
on the customer PCB and on this PCB are different, the matching elements have to
be optimised regarding the circuit and PCB design.
The matching elements have been chosen from the E12- series (European standard
series with fixed tolerances) to get the best agreement between the PCB
measurement and the measurement in a reference test fixture.
2. Theoretical matching
The balanced driven source and load impedances of the filter are:
source impedance:
180
|| - 0,7 pF
load impedance:
140
|| - 0,6 pF
The values of the matching elements which are given below are calculated from the
source and load impedance. If the values of the matching elements are not equal to
standard values the best standard values are given in brackets.
50
test circuit
L1
version 1.0
01.11.00
TFS 390 - 1/2
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
10
1,2,3,5,6,7,8,9,11,12
SAW
C1
4
C2
L2
L1 = 33 nH
C1 = 3.0 pF
L2 = 27 nH
C2 = 3.3 pF
相關PDF資料 |
PDF描述 |
|---|---|
| TFS400A | Filter specification |
| TFS400B | SAW Filter Specification |
| TFS400C1 | VI SAW濾波器(VI SAW Filter) |
| TFS400C2 | SAW Filter Specification |
| TFS400D | Filter Specification |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TFS390C | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS390E | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS395 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS398B | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
| TFS398D | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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