TFS468F Datasheet, PDF (2/2 Pages) Vectron International, Inc – Application Note

Ltp: TFP7x5B
VI TELEFILTER
3. Matching on the PCB
version 1.2
Application Note
25.01.2007
TFS 468F
2/2
For example: PCB with 50 Ω test circuit
L
C
L
2
10
4
L3
SAW
12
L
6
4
C2
1, 2, 3, 5, 7, 8, 9, 11
L1 = 24 nH
L2 = -
C1 = 15 pF
L3 = 20 nH
L4 = -
C2 = 15 pF
All other components are 0 Ω jumpers.
The matching on the PCB does slightly differ from the theoretical matching. The reasons for
that are parasites of the PCB.
If the parasites on the customer board (mentioned parasites, additional parasites of active
parts) are different to this PCB the matching elements have to be slightly adjusted.
In case of questions please contact us to
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
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.