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 Read-only Transponder 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 IDentification Integral Circuit (IDICÒ) e5530 and the antenna is realized by a LC-circuit. TK5530 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. Any attempt to fake the base station with a wrong transponder will be recognized immediately. System Block Diagram TK5530 Transponder RF field (e5530 + coil + C in plastic cube) C e5530 Power Coil Data Base station U2270B reader IC MARC4 series µC Rev. 4683A–RFID–02/03 1 General The transponder consists of a plastic cube which accommodates following components: Read-Only IDICÒ • Read-only IDICÒ with ROM (e5530) • Antenna realized as tuned LC-circuit The e5530 is part of a closed coupled identification system (see ’System Block Diagram’). It receives power from a RF transmitter (reader) which is coupled inductively to the IDIC. The TK5530 transponder operates at a nominal frequency 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 identifying data are stored in a 128-bit PROM on the e5530, which is factory programmed with a unique code (see specification of the e5530). with ROM (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 1. Block Diagram Analog front end Load Coil Modulator FSK PSK BIPH Manchester Clk R7 R6 R5 R4 R3 R2 R1 R0 128 bit PROM C15 C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 Clock extractor Data Row decoder Mod Column decoder Rectifier VDD 2 Bitrate A6 A5 A4 A3 A2 A1 A0 Coil Counter VSS TK5530 4683A–RFID–02/03 TK5530 Absolute Maximum Ratings Parameter Symbol Value Unit Operating temperature range Tamb -40 to +85 °C Storage temperature range Tstg -40 to +125 °C Assembly temperature t < 5 min Tass 170 °C Magnetic field strength at 125 kHz Hpp 1000 A/m Operating Characteristics Transponder Tamb = 25°C, f = 125 kHz unless otherwise specified Parameters Test Conditions Symbol Inductance Min. L Typ. Max. 3.95 Unit mH LC circuit, Hpp = 20 A/m Resonance frequency Room temperature fr 121.4 Resonance frequency Tamb = -40 to +85°C fr 120.0 Quality factor 125 QLC 13 129.2 kHz 131.0 kHz Magnetic Field Strength (H) Max. field strength where tag does not modulate No influence to other tags in the field Hpp not 2 A/m Field strength for operation Tamb = -40°C Hpp -40 30 A/m Field strength for operation Tamb = 25°C Hpp 25 18 A/m Field strength for operation Tamb = 85°C Hpp 85 17 A/m Maximun field strength 600 Hpp max A/m Modulation Range (see also H-DV curve) Modulation range DV Hpp = 20 A/m Hpp = 30 A/m Hpp = 50 A/m Hpp = 100 A/m 4.0 6.0 8.0 8.0 V Figure 2. Typical TK-range of Resonance Frequency 4 3 TK of fres (%) 2 1 0 -1 -2 -3 -4 -40.0 -20.0 0.0 20.0 40.0 60.0 80.0 100.0 Temperature (°C) 3 4683A–RFID–02/03 Figure 3. Typical H-DV Curve 9 8 7 DV (V) 6 5 4 3 2 1 0 0.0 20.0 40.0 60.0 80.0 100.0 120.0 HPP (Á/m) Figure 4. Measurement of the Modulation Range DV Output voltage of the testing application (see figure 6 and 7) V1 Vmod DV = V1-Vmod 4 TK5530 4683A–RFID–02/03 TK5530 Measurement Assembly All parameters are measured in a Helmholtz-arrangement, which generates a homogenous magnetic field (see Figure 5 and Figure 6). A function generator drives the field generating coils, so the magnetic field can be varied in frequency and field strength. Figure 5. Testing Application SENSING COILS ( IN PHASE ) OUTPUT VOLTAGE SUBTRACTOR TK5530 AMPLIFIER 1:10 REFERENCE COIL ( IN PHASE ) REFERENCE COIL ( IN PHASE ) FIELD GENERATING COILS ( IN PHASE ) FUNCTION GENERATOR Figure 6. Testing Geometry l = 30 mm Transponder d = 60 mm 22 mm REFERENCE COIL REFERENCE COIL SENSING COIL SENSING COIL 5 mm FIELD GENERATING COIL FIELD GENERATING COIL 5 4683A–RFID–02/03 IDICÒ (Reference Data Sheet e5530) Coding Memory size maximum 128 Bit (details see “Coding”) Memory type ROM Programming Laser cutting Data rate RF/32 - RF/64 Encoding Manchester or Bi-phase Modulation AM Maximum coil voltage (internally limited) Vpp (I = 5 mA) 16 V The memory of the TK5530 can be selected to be a 64- or 128-bit rolling code. In the non-standard version, the first 8 bits are a customer-specific pattern. This can be selected by the customer, provided that Atmel agrees to the customer’s proposal. This pattern is unique within the serial rolling code data stream. The ID code and further bit informations following the 8-bit header can also be defined within the customer’s specification. The set-up of a suitable coding scheme can be provided on customer’s request. Read Distance The maximum distance between the base station and the TK5530 mainly depends on the base station, the coil geometries and the modulation options chosen (see U2270B Antenna Design Hints and the U2270B data sheet). When generating an appropriate field with a suitable reader technique, a distance of 10 cm and more can be obtained. When using the Atmel U2270B demo board, the typical distances in the range of 0 to 5 cm can be achieved. Maximum distance values which are generally valid can not be given in this data sheet. The exact measuring of the maximum distance should be carried out with the TK5530 being integrated into the specific application. Ordering Information Extended Type Number Modul. Data Rate Configuration Checksum Header ID Code SPQ (Minimum Volume) Minimum Order Volume TK5530HM-232-PP Manch. RF/32 64 bit no checksum E6 fixed and unique code 10 kpcs >1 kpcs (per order, from stock) TK5530HM-zzz-PP Note: 6 defined by customer > 300 kpcs p.a. 1) Definition of customized part number basing on orders for first year volume (300 kpcs) 2) Definition of header, ID code, checksum etc. according to customers data base 3) 8.000 US$ initial cost for metal mask 4) Lead time 5 month 5) Low volume customized application can be covered by TK5550F-PP programming, for identical application, as TK5530H-zzz-PP. TK5530 4683A–RFID–02/03 TK5530 Ordering Number for Standard Version TK5530HM-232-PP Ordering Number for Customized Version TK5530xy-zzz-PP Plastic package Custom code Modulation M -> Manchester code B -> Biphase code Mask version of die Application Figure 7. Complete Transponder System with the Read/Write Base-station IC U2270B 5V 110 kW 5V 22 mF 47 nF U2270B DV S M44C260 RF MS CFE OE Standby Output Gain 680 pF Input 4.7 kW 1N4148 470 kW VDD VEXT VS VBatt BP00 BP01 BP02 BP03 BP10 osc IN 32 kHz osc OUT COIL2 1.5 nF 1.2 nF 1.35 mH R Read/write circuit 100 nF Micro controller COIL1 Data Power C31 e5530 DGND GND VSS fres = 1 / (2pÖLC) = 125 kHz Transponder TK5530 7 4683A–RFID–02/03 Package Information Dimensions in mm 8 TK5530 4683A–RFID–02/03 Atmel Headquarters Atmel Operations Corporate Headquarters Memory 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL (852) 2721-9778 FAX (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan TEL (81) 3-3523-3551 FAX (81) 3-3523-7581 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France TEL (33) 2-40-18-18-18 FAX (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France TEL (33) 4-42-53-60-00 FAX (33) 4-42-53-60-01 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany TEL (49) 71-31-67-0 FAX (49) 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 1(719) 576-3300 FAX 1(719) 540-1759 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France TEL (33) 4-76-58-30-00 FAX (33) 4-76-58-34-80 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 1(719) 576-3300 FAX 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland TEL (44) 1355-803-000 FAX (44) 1355-242-743 e-mail [email protected] Web Site http://www.atmel.com © Atmel Corporation 2003. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. Atmel ® is the registered trademark of Atmel. IDIC Ò stands for IDentification Integrated Circuit and is a trademark of Atmel Germany GmbH. Other terms and product names may be the trademarks of others. Printed on recycled paper. 4683A–RFID–02/03 xM