srf55v02s Infineon Technologies Corporation, srf55v02s Datasheet - Page 9

• Manufacturer Part Number: srf55v02s
• Description: Security & Chip Card Ics My-d Vicinity
• Manufacturer: Infineon Technologies Corporation

3.2
The system consists of a contactless label on one hand and a contactless reader together with an
antenna on the other. Operations on protected areas of my-d vicinity in secure mode require a
mutual authentication with the reader. To achieve a high system security a Security Access Module
(SAM) holds the algorithm for performing the mutual authentication and integrity check of all data
exchange.
Figure 6 Contactless System Example
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•
Contactless Energy and Data Transfer
The operating distance between label and reader antenna is typically up to 120 cm in an
appropriate gate configuration. The label antenna consists of a simple coil with a few turns.
Contactless labels are passive. The RF communication interface allows to exchange data with
26 kbit/s. This high data transmission rate permits short transaction times.
An intelligent anticollision function allows to operate more than one label in the field
simultaneously. The anticollision algorithm selects each label individually and ensures that the
execution of a transaction with a selected label is performed correctly without data corruption
resulting from other labels.
Short Product Information
VICC – Vicinity Card according to ISO/IEC 15693
optional SAM – Security Access Module with contacts according to ISO/IEC 7816
System Overview
Host System
SAM
µC
Identification Terminal
Circuitry
Analog
Antenna
9 / 10
Energy
Data
vicinity
Label
my-d
VICC
my-d vicinity
SRF 55V02S
2002-07-30