TK5551 ATMEL Corporation, TK5551 Datasheet
TK5551
Related parts for TK5551
TK5551 Summary of contents
Page 1
... RF field generated by the base station. Data are transmitted by modulating the amplitude of the RF field. The TK5551 can be used to adjust and modify the ID code or any other stored data, e.g., rolling code systems. The on-chip 264-bit EEPROM (8 blocks, 33 bits per block) can be read and written block wise from the base station ...
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... Data are transmitted by modulating the amplitude of the RF signal. Reading of register contents occurs by damping the coil by an internal load. Writing into registers occurs by interrupting the RF field in a specific way. The TK5551 transponder operates at a nominal frequency of 125 kHz. There are different bit rates and encoding schemes. ...
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... Figure 4-1. 4709F–RFID–06/06 Block Diagram of the e5551 Modulator Coil1 Coil2 POR Mode register Memory (264 bit EEPROM) Controller Input register Test logic HV generator Test pads TK5551 3 ...
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... Magnetic Field Strength (H) Maximum field strength where tag does not modulate Field strength for operation Programming mode Data retention EEPROM Programming cycles EEPROM Programming time/block Maximum field strength Modulation Range (see also H-DV Curve) Modulation range TK5551 4 Symbol T amb T stg T ass H pp ...
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... V 1 mod mod 4709F–RFID–06/06 Typical T Range of Resonance Frequency -40 - Temperature (˚C) Typical H-DV Curve Output voltage of the testing application TK5551 100 60 80 100 120 (A/ ...
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... SENSING COILS ( IN PHASE ) TK5551 FIELD GENERATING COILS ( IN PHASE ) FUNCTION GENERATOR Testing Geometry REFERENCE COIL 2 mm SENSING COIL 5 mm FIELD GENERATING COIL SUBTRACTOR AMPLIFIER 1:10 REFERENCE COIL ( IN PHASE ) TK5551 REFERENCE COIL SENSING COIL FIELD GENERATING COIL OUTPUT VOLTAGE 60 mm 4709F–RFID–06/06 ...
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... Write data decoder 10. Actual Behavior of the Device The TK5551 detects a gap if the voltage across the coils decreases below the threshold value of an internal MOS transistor. Until then, the clock pulses are counted. The number given for a valid “0” or “1” (see there are always more clock pulses being counted than were applied by the base station ...
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... RF level reduces to zero immediately 11. Operating Distance The maximum distance between the base station and the TK5551 depends mainly on the base station, the coil geometries and the modulation options chosen (see “U2270B Antenna Design Hints” and the “U2270B” data sheet). Under laboratory conditions, a distance can be reached. For optimized distance, please refer to the application note. When using Atmel’ ...
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... Batt U2270B DV 22 µ 680 pF MS Input CFE OE 4.7 kΩ Standby Output Gain 1N4148 COIL2 1.2 nF Read/write circuit 1. COIL1 DGND GND (2π√LC) = 125 kHz res e5551 Transponder TK5551 5V 110 kΩ I/O I/O osc IN I/O I/O I/O osc OUT 100 nF Microcontroller V SS TK5551 9 ...
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... Ordering Information Extended Type Number Package TK5551M-PP Plastic package Note: 1. See data sheet e5551 14. Package Information Dimensions in mm TK5551 10 Remarks All kinds of modulation; RF/8, RF/16, RF/32, RF/40, RF/50,RF/64,RF/100 and RF/128 Default programmed: Manchester Modulation, RF/32, MAXBLK = 2 (1) 4709F–RFID–06/06 ...
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... Put datasheet in a new template • Pb-free logo on page 1 deleted • Last page: Legal sentence changed • Figure12-1 “Complete Transponder System with the Read/Write Base Station IC U2270B” on page 9 changed • Put datasheet in a new template • Lead-free Logo on page 1 added TK5551 11 ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © 2006 Atmel Corporation. All rights reserved. Atmel trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...