Maker : ATMEL Corporation
Part No. : ATA5575M2

  Datasheet PDF : ATA5575M2.pdf
  Cross Reference : ATA5575M2 Cross Reference
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Shortcut : ATA5575M1  ATA5575M2 

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www.DataSheet.co.kr Features • • • • • • • Contactless Power Supply Contactless Read/Write Data Transmission Radio Frequency fRF from 100kHz to 150kHz 128-bit EEPROM User Memory: 16 Bytes (8 Bits Each) 8-bit Configuration Memory High Q-antenna Tolerance Due to Built-in Options Applications – Animal ID, Waste Management, Industrial Identification • ISO/IEC 11784/785 Compatibility • FDX-A • FDX-B On-chip Trimmed Antenna Capacitor – 330pF ±3% – 250pF ±3% Mega Pads 200µm × 400µm Mega Pads 200µm × 400µm with 25µm Gold Bumps for Direct Coil Bonding Other Options: – Direct Access Mode – OTP Functionality • • • • Read/Write LF RFID IDIC 100kHz to 150kHz Atmel ATA5575M2 Preliminary 1. Description The Atmel® ATA5575M2 is a contactless read/write identification IC (IDIC®) for applications in the 100-kHz to 150-kHz frequency band. A single coil connected to the chip serves as the IC's power supply and bi-directional communication interface. This antenna coil together with the chip form a transponder or tag. The on-chip 128-bit User EEPROM (16 bytes with 8 bits each) can be read and written byte-wise from a base station (reader). Data is transmitted from the IDIC (uplink) using load modulation. This is achieved by damping the RF field with a resistive load between the two terminals Coil 1 and Coil 2. The IC receives and decodes serial base station commands (downlink), which are encoded as 100% amplitude-modulated (OOK) pulse-interval-encoded bit streams. The Atmel ATA5575M2 is an EEPROM-based circuit. It is optimized for maximum read range. Programming is also possible but the write range is limited. The typical animal ID application conforming to ISO11784/85 is read-only and operates at 134.2kHz. The Atmel ATA5575M2 thus has to be locked after programming the animal-specific code. 9217B–RFID–05/11 Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr 2. System Block Diagram Figure 2-1. RFID System Using Atmel® ATA5575M2 Tag Transponder Power Reader or Base station Coil interface Controller Memory Data Atmel ATA5575 3. Atmel ATA5575M2 - Functional Blocks Figure 3-1. Block Diagram Modulator POR Coil 1 Analog front end Mode register Write decoder Memory (136-bit EEPROM) Controller Coil 2 Data-rate generator Input register Test logic HV generator 2 Atmel ATA5575M2 [Preliminary] 9217B–RFID–05/11 Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr Atmel ATA5575M2 [Preliminary] 4. Analog Front End (AFE) The AFE includes all circuits which are connected directly to the coil terminals. The AFE generates the IC power supply and handles bi-directional data communication with the reader. The AFE consists of the following blocks: • Rectifier to generate a DC supply voltage from the AC coil voltage • Clock extractor • Switchable load between Coil 1 and Coil 2 for data transmission from tag to the reader • Field-gap detector for data transmission from the base station to the tag • ESD protection circuitry 4.1 Data Rate Generator The data rate of the Atmel ATA5575M2 is programmable to operate at RF/50 (FDX-A mode) and RF/32 (FDX-B mode). 4.2 Write Decoder The write decoder detects the write gaps and verifies the validity of the data stream according to the Atmel® downlink protocol (pulse-interval encoding). 4.3 HV Generator This on-chip charge pump circuit generates the high voltage required for programming the EEPROM. 4.4 DC Supply Power is supplied externally to the IDIC via the two coil connections. The IC rectifies and regulates this RF source and uses it to generate its supply voltage. 4.5 Power-On Reset (POR) The power-on reset circuit blocks the voltage supply to the IDIC until an acceptable voltage threshold has been reached. This, in turn, triggers the default initialization delay sequence. During this configuration period of 98 field clocks, the ATA5575M2 is initialized with the configuration data stored in EEPROM by...

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