TK5530 Datasheet, PDF (1/9 Pages) ATMEL Corporation – READ ONLY TRANSPONDER

Features
• Identification Transponder in Plastic Cube
• Basic Component: e5530 IDIC^Ò
• 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 (IDIC^Ò) 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