Mifare 14443A Manual, Application Note

2, Philips Semiconductors Rev. 1.0 November 2002 13.56 MHz RFID Proximity Antennas mifare ® (14443A) 2 PUBLIC CONTENTS 1 INTRODUCTION......................................................................................3 1.1 Purp…

9, Philips Semiconductors Rev. 1.0 November 2002 13.56 MHz RFID Proximity Antennas mifare ® (14443A) 9 PUBLIC 3.3 Data Transmission PICC Æ PCD 3.3.1 SUBCARRIER LOAD MODULATION PRINCIPLE The data transmission from the PICC back to the PCD uses the principle of load modulation shown…

13, Philips Semiconductors Rev. 1.0 November 2002 13.56 MHz RFID Proximity Antennas mifare ® (14443A) 13 PUBLIC 4.2 Environmental Influences 4.2.1 METAL ENVIRONMENT Any alternating magnetic field induces a voltage in metal components positioned nearby the reader antenna. This…

20, Philips Semiconductors Rev. 1.0 November 2002 13.56 MHz RFID Proximity Antennas mifare ® (14443A) 20 PUBLIC 5 ANTENNA DECISION GUIDE Micore is a single reader IC family, which is designed to achieve operating distances up to 100mm without external amplifiers. The design …

8, Mifare 14443A Philips Semiconductors Rev. 1.0 November 2002 13.56 MHz RFID Proximity Antennas mifare ® (14443A) 8 PUBLIC data bit "0": data bit "1": 3µs 9.44 µ s 3µs 9.44 µ s previous bit "0" modulated carrier previous bit "1" 9.44 µ s…

24, Philips Semiconductors Rev. 1.0 November 2002 13.56 MHz RFID Proximity Antennas mifare ® (14443A) 24 PUBLIC 6.2 Parameters and Units V ind : Induced voltage N: Number of turns Φ: Magnetical Flux t: time B: Magnetical Flux densitiy A: (Coil) Area V 20 : Ind…