TFS341A Datasheet, PDF (3/5 Pages) Vectron International, Inc – Filter specification

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50 Ω test circuit and theoretical values of matching elements
Remark:
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. If standard matching elements instead of the exact values are used it can not be guaranteed that the
specification will be fulfilled.
Because these are theoretical values they have to be modified on PCB’s corresponding to the existing parasitics.
50 Ω test circuit1
L1
10
Input
50 Ohm
L2
SAW
L3
4
Input
50 Ohm
L4
1,2,3,5,6,7,
8,9,11,12
L1 = 81 nH
L3 = 78 nH
(82 nH)
(82 nH)
L2 = 125 nH
L4 = 150 nH
(120 nH)
50 Ω test circuit2
Input
50 Ohm
L1
10
C1
SAW
L2
4
C2
L1 = 62 nH
L2 = 64 nH
(56 nH)
(68 nH)
C1 = 12 pF
C2 = 11 pF
1,2,3,5,6,7,
8,9,11,12
(10 pF)
Input
50 Ohm
______________________________________________________________________________________________________
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: [phone] / Fax: [phone]
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
E-Mail: [e-mail]
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.