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TK5530

Read-only Transponder

Atmel Corporation 

Features

• Identification Transponder in Plastic Cube

• Basic Component: e5530 IDICÒ

• Includes Coil and Capacitor for Tuned Circuit Antenna

• Carrier Frequency: 125 kHz

Application

• Car Immobilizer

• Access Control

• Alarm Systems

• Other Identification Systems

Description

The TK5530 is a complete transponder, which implements all important functions for

immobilizer and identification systems. It consists of a plastic cube which accommo-

dates the read-only IDentification Integral Circuit (IDICÒ) e5530 and the antenna is

realized by a LC-circuit.

The identifying data are stored in a 128 bit PROM on the e5530, realized as an array

of laser-programmable fuses. The logic block diagram for the e5530 is shown in

Figure 1. The data are sent bit-serially as a code.

Read-only

Transponder

TK5530

Any attempt to fake the base station with a wrong transponder will be recognized

immediately.

System Block Diagram

RF field

Power

Data

TK5530 Transponder

(e5530 + coil + C in plastic cube)

C

e5530

Coil

Base station

U2270B reader IC

MARC4 series µC

Rev. 4683A–RFID–02/03

1

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