DEMO90121DA Melexis Inc, DEMO90121DA Datasheet
DEMO90121DA
Specifications of DEMO90121DA
Related parts for DEMO90121DA
DEMO90121DA Summary of contents
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Features and Benefits (1) Conforms with ISO14443B Conforms with ISO15693 Programmable encoder and decoder Low external component count (1) RATP / Innovatron Technology Ordering Information Part No. Temperature Suffix MLX90121 E (-40° 85° Functional Diagram Attenuation ...
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FEATURES AND BENEFITS ....................................................................................................................... 1 APPLICATIONS............................................................................................................................................ 1 ORDERING INFORMATION......................................................................................................................... 1 1. FUNCTIONAL DIAGRAM................................................................................................................... 1-1 2. DESCRIPTION.................................................................................................................................... 2-1 3. GLOSSARY OF TERMS ....................................................................................................................... 3 4. ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 3 5. MLX90121 ELECTRICAL SPECIFICATIONS ...................................................................................... 3 6. MLX90121 SPECIFIC SPECIFICATIONS............................................................................................. 4 ...
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Glossary of Terms 4. Absolute Maximum Ratings Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions for extended periods may affect device reliability. 5. MLX90121 Electrical Specifications T = -40 ºC to +85 ºC, ...
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MLX90121 Specific Specifications DC Operating Parameters T A otherwise specified) 3901090121 Rev. 009 - +70 Page MLX90121 13.56MHz RFID Transceiver C according to ...
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Notes 1. Parameter measured using recommended output matching network. 2. This parameter is measured using a base band signal for all specified modulation modes. The measurement is made at the DOUT output with the input diode detector bypassed. 3. The ...
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General Description Power supply The 90121 requires a nominal volts external power supply. Operation is guaranteed between 2.7 and 5.5 Volts. The current drain depends on the antenna impedance and the output matching network configuration. Care ...
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Applications Information This schematic has been optimized to drive a fifty ohms resistive antenna, using a five volts power supply. Functional description The transmitter output TX is connected to the supply by means of a choke L3 ...
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Block Diagram RMOD 13.56MHz 10. Digital Interface The MLX90121 is driven by four signals: MODE and RTB pins are used to select the operating mode and DIN and CK pins are used to configure the chip ...
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Operating Modes 11. 11.1. Definitions There are two main operating modes: MODE = 0 : Configuration Mode MODE = 1 : Communication Mode The configuration mode allows writing in the configuration registers. It will configure all parameters in the transceiver. ...
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MODE DIN CK RTB After sending address and data, the MODE line is asserted high and the chip is ready to receive the next register configuration. Notes register does not contain eight bits, write ‘0’ in the ...
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Direct Transmission Before analog processing, data transmission can be either direct or pre-processed by means of hardware accelerators. Direct transmission can be performed with the following setup: Data has to be transmitted in real time by the microcontroller on ...
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The ISO15693 protocol, mode 1 out of 256, is implemented using three symbols. Start of frame (SOF), end of frame (EOF) and pulses encoding result of the combination of these three symbols. Note The position of the symbol Sym1 encodes ...
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Symbol Transmission CK and DIN inputs are used to transmit symbols. On each rising edge of the CK signal, DIN is sampled to encode the address of the corresponding symbol. This means that each address of the seven available symbols ...
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Reception 11.3.2.a. Analog Setup For a proper reception, the analog chain has to be configured according to the following parameters in the AnalogConfig register: ByPassAll: It bypasses the analog filters in the analog chain. Must be enabled for AM ...
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Direct Reception After analog processing, data reception can be either direct or pre-processed by hardware accelerators, according to the configuration of the SelDOUT parameter in the DigitalConfig register. Note The output phase of PSK decoder is either normal or ...
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MVTime DecTime Re f 1 MVTime _ max 37 . ISO examples Note For Manchester coding, majority voting is on half bit portions only. In addition, the MVMode parameter in the DigitalConfig register ...
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Example in ISO1569-Dual Sub-carrier Data Slicer LTC is an internal signal which controls the time constant of the comparator. This signal is switched to ensure a proper decoding in ASK modes in order to improve the reading performances. LTC is ...
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Example in ISO15693-Single Sub-carrier Input Signal 11.4. Power Modes This chip has three power modes. To select one of these modes write the PowerState parameter in the . PowerState register Power Down If the Power Down mode is selected, the ...
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Configuration Registers The following tables explain the meaning of the bit configurations in the 13 registers. Notes Notes 3901090121 Rev. 009 13.56MHz RFID Transceiver 1 0 Unused Page MLX90121 Data Sheet Sept.-2009 ...
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Notes Notes Symbol 6 is hard-coded to 0xFF (11111111). 3901090121 Rev. 009 13.56MHz RFID Transceiver Unused Page MLX90121 Data Sheet Sept.-2009 ...
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Configuration Registers: ISO Configuration Examples Notes All values are in hexadecimal notation. Transmitter is switched on. 3901090121 Rev. 009 0 -- Unused -- Unused Page MLX90121 13.56MHz RFID Transceiver Data Sheet Sept.-2009 ...
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Standard information regarding manufacturability of Melexis products with different soldering processes Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: Reflow Soldering SMD’s (Surface Mount Devices) IPC/JEDEC J-STD-020 Moisture/Reflow ...
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Package Information The device is packaged pin lead free SSOP package. 1 VDD1 VSS3 19 3 MOD RES2 18 4 VSS1 VDD3 17 5 XOUT DSYNC 16 6 XIN ...
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Rev. 009 13.56MHz RFID Transceiver Page MLX90121 Data Sheet Sept.-2009 ...
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Disclaimer 1) The information included in this documentation is subject to Melexis intellectual and other property rights. Reproduction of information is permissible only if the information will not be altered and is accompanied by all associated conditions, limitations and ...