ATMEL TK5530 User Manual
查询TK5530 供应商
Features
• Identification transponder in plastic cube
• Basic component: e5530 IDIC
• Includes coil and capacitor for tuned circuit antenna
• Adjusted to 125 kHz carrier frequency
Application
• Car immobilizer
• Access control
• Alarm syst ems
• 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 accommodates the read-only IDIC
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 2.
The data are sent bit-serially as a code.
*)
e5530 and the antenna is realized by a LC-circuit.The
Read-Only
Transponder
TK5530
Any attempt to fake the base station wi th a wrong t ransponder will be recognized
immediately.
System Block Diagram
Figure 1.
TK5530 Transponder
RF field
Power
Data
Base station
U2270B reader IC
MARC4 series µC
(e5530 + coil + C in plastic cube)
C
e5530
Coil
*)
IDIC stands for IDentification Integrated Circuit and is a trademark of Atmel.
Rev. A5, 19-Dec-01
1 (10)
General The transponder consists of a plastic cube which accommodates following components:
• Read-only IDIC
• Antenna realized as tuned LC-circuit
with ROM (e5530)
Read-Only IDIC
with ROM (e5530)
The e5530 is part of a closed coupled id entification s ystem (see fig ure 1). It receiv es
power from a RF tr ansmitter (r eader) whic h is coupled inductively to the IDIC. Th e
TK5530 transp onder oper ates at a nomin al frequenc y of 125 kHz. Receiving RF , the
IDIC responds with a data stream by damping the incoming RF via an internal load. This
damping in turn can be detected by the reader . The iden tif yi ng data are st ored in a 128bit PROM on the e5530, which is factory programmed with a unique code (see specification of the e5530).
The e5530 has several possible options regarding modulation, bitrate, memory size etc.
Antenna The antenna consists of a coil and a capacitor for tuning the circuit to the nominal carrier
frequency of 125 kHz. The coil has a ferrite-core for improving the readout distance.
Figure 2.
Analog front end
Modulator
Coil
Load
Clock
extractor
Mod
Clk
FSK
PSK
BIPH
Manchester
r
e
d
o
c
e
d
w
o
R
Data
R7
R6
R5
R4
R3
R2
R1
R0
128 bit PROM
Coil
Rectifier
V
DD
VSS
Bitrate
3
2
5
4
1
0
1
1
1
1
1
1
6
5
7
8
9
C
C
C
C
C
C
C
Column decoder
4
6
2
0
1
A
A
A
5
3
A
A
A
A
Counter
4
3
1
2
C
C
C
C
0
C
C
C
C
C
2 (10)
TK5530
Rev. A5, 19-Dec-01
TK5530
Absolute Maximum Ratings
Parameter Symbol Value Unit
Operating temperature range T
Storage temperature range T
Assembly temperature t < 5 min T
Magnetic field strength at 125 kHz H
amb
stg
ass
pp
Operating Characteristics Transponder
T
= 25°C, f = 125 kHz unless otherwise specified
amb
Parameters Test Conditions Symbol Min. Typ. Max. Unit
Inductance L3.95mH
LC circuit, H
Resonance frequency Room temperature f
Resonance frequency T
Quality factor Q
Magnetic Field Strength (H)
Max. field strength where tag does
not modulate
Field strength for operation T
Field strength for operation T
Field strength for operation T
Maximun field strength H
Modulation Range (see also H-DV curve)
Modulation range H
pp = 20 A/m
= -40 to +85°Cf
amb
No influence to other tags in the field H
= -40°CH
amb
= 25°CH
amb
= 85°CH
amb
= 20 A/m
pp
= 30 A/m
H
pp
H
= 50 A/m
pp
= 100 A/m
H
pp
-40 to +85 °C
-40 to +125 °C
170 °C
1000 A/m
r
r
LC
pp not
pp -40
pp 25
pp 85
pp max
121.4 125 129.2 kHz
120.0 131.0 kHz
13
2A/m
30 A/m
18 A/m
17 A/m
DV 4.0
6.0
8.0
8.0
600 A/m
V
Rev. A5, 19-Dec-01
Figure 3. Typical TK-range of resonance frequency
4
3
2
1
( % )
0
res
-1
TK of f
-2
-3
-4
-40.0 -20.0 0.0 20.0 40.0 60.0 80.0 100.0
Temperature ( °C )
3 (10)
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