Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

Preview PDF HTML

AN3394 Fiches technique(PDF) 9 Page - STMicroelectronics

No de pièce AN3394
Description  Antenna design and impedance matching guidelines for CR95HF multiprotocol contactless transceiver IC
PDF  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3394 Fiches technique(HTML) 9 Page - STMicroelectronics

Back Button AN3394 Datasheet HTML 5Page - STMicroelectronics AN3394 Datasheet HTML 6Page - STMicroelectronics AN3394 Datasheet HTML 7Page - STMicroelectronics AN3394 Datasheet HTML 8Page - STMicroelectronics AN3394 Datasheet HTML 9Page - STMicroelectronics AN3394 Datasheet HTML 10Page - STMicroelectronics AN3394 Datasheet HTML 11Page - STMicroelectronics AN3394 Datasheet HTML 12Page - STMicroelectronics AN3394 Datasheet HTML 13Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 29 page
background image
AN3394
Description of DEMO-CR95HF-A and criteria for impedance matching
Doc ID 018754 Rev 5
9/29
1.5
Impedance matching circuit
1.5.1
Antenna circuit description
The impedance matching circuit is composed of a serial capacitance circuit (C2and C6) and
a parallel capacitance circuit (C3and C17).
Successive impedance transformation allows to simplify the antenna equivalent circuit and
to calculate C2, C6, C3 and C17 capacitances easily.
Figure 6.
Antenna circuit description
Where
R1,R5:
330
Ω. These resistors are used to limit the signal level on RX1-RX2. They must be
considered in the calculation of the impedance matching circuit.
Cinput:
22 pF. Cinput is the integrated capacitor between RX1-RX2. As R1,R5, it must be considered
for the impedance matching circuit.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


Fiches technique Télécharger

Go To PDF Page


Lien URL



ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Lien vers la fiche technique    |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com