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W55MID50 Datasheet(PDF) 5 Page - Winbond |
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W55MID50 Datasheet(HTML) 5 Page - Winbond |
5 / 10 page W55MID50 Data Sheet Winbond Electronics Corp. 5 Revision: A3 Publish Date: 2003/3/24 System Description 2.1 W55MID50 System Block Diagram 2.2 W55MID50 Functional Description Transmission Power Amplifier (PA) It provides 4 different selectable transmission power for Reader chip to support MFIDWB Tag's radiation power supply. The external inductor coupling circuit is designed for 13.56MHz magnetic field resonance. The coupled center frequency will depend on equivalent value of external PCB inductor and capacitor. Envelope Detector & Analog Front End The major function of this unit provides MFID WB Tag's data can be extracted. Voltage Regulator The voltage regulator generates the system needs of device power supply. Configuration Register System configuration register controls the all functional settings of W55MID50 such as Tag data Command Extractor Configuration Register Data- Buff. output Data- Buff. I Envelope detector & Analog Front End Oscillation circuit 13.56MHz Voltage Regulator Preamble & Data Clk Generator Decoder (NRZ/ Man.) Reset & Power down Control PA Data- Buff. II TXD |
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