ata5551 ATMEL Corporation, ata5551 Datasheet
ata5551
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ata5551 Summary of contents
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... RF field generated by the base station. Data are transmitted by modu- lating the amplitude of the RF field. The Atmel ATA5551 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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... Read/Write IDIC e5551 The read/write Atmel IDIC e5551 is part of the transponder Atmel ATA5551. The data are trans- mitted bi-directionally between the base station and the transponder. The transponder receives power via a single coil from the RF signal generated by the base station. The single coil is connected to the chip and also serves as the IC’ ...
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... Figure 4-1. 9211A–RFID–10/10 Atmel ATA5551 Preliminary Block Diagram of the Atmel e5551 Chip Modulator Coil1 Coil2 POR Mode register Memory (264-bit EEPROM) Controller Input register Test logic HV generator Test pads 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 Atmel ATA5551 Preliminary 4 Symbol T amb T stg T ass H pp ...
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... Figure 6-1. Figure 6-2. Figure 6-3. Measurement of the Modulation Range mod mod 9211A–RFID–10/10 Atmel ATA5551 Preliminary Typical T Range of Resonance Frequency -40 - Temperature (°C) Typical H-DV Curve Output voltage of the testing application ...
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... All parameters are measured in a Helmholtz arrangement, which generates a homogenous magnetic field (see coils, so the magnetic field can be varied in frequency and field strength. Figure 7-1. REFERENCE COIL ( IN PHASE ) Figure 7-2. 24mm Atmel ATA5551 Preliminary 6 Figure 7-1 and Figure 7-2). A function generator drives the field generating Testing Application SENSING COILS ( IN PHASE ) ...
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... Write data decoder 10. Actual Behavior of the Device The Atmel ATA5551 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 However, there are always more clock pulses being counted than were applied by the base station ...
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... Coil voltage 0 1 Gap detect Figure and shorter time values for t gap gap internal 0 internal Actual behavior RF level decreases exponentially ® ATA5551 depends mainly on 10-1. The time duration is dependent on the mini- and 9211A–RFID–10/10 ...
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... Application Figure 12-1. Complete Transponder System with the Read/Write Reader IC U2270B 5V 47nF 470kΩ 1.5nF C31 9211A–RFID–10/10 Atmel ATA5551 Preliminary EXT Batt Atmel U2270B 22µ 680pF MS Input CFE OE 4.7kΩ Standby Output Gain 1N4148 COIL2 1.2nF Read/write circuit 1.35mH ...
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... Ordering Information Extended Type Number Package ATA5551M-PP Plastic package Note: 1. See datasheet Atmel e5551 14. Package Information Dimensions in mm Atmel ATA5551 Preliminary 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) 9211A–RFID–10/10 ...
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... Atmel Munich GmbH Business Campus Parkring 4 D-85748 Garching b. Munich GERMANY Tel: (+49) 89-31970-0 Fax: (+49) 89-3194621 ® and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other Atmel 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 ...