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AS3909 Datasheet(PDF) 3 Page - ams AG |
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AS3909 Datasheet(HTML) 3 Page - ams AG |
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3 / 77 page  ams Datasheet, Confidential: 2013-Oct [3-02] AS3909/AS3910 – 3 General Des c ripti o n Applications The AS3909/10 is ideal for applications where the reader antenna is directly driven (no 50Ω cable). It also includes several unique features, which make it especially suitable for low power and battery powered applications. Block Diagram The functional blocks of this device for reference are shown below: Figure 3: AS3909/10 HF RFID Reader IC Block Diagram Note: The main differences between AS3909 and AS3910 are elaborated in sections General Description, Pin Assignments, Detailed Description, Direct Commands, Clear and Active Receive – Use in ISO-14443B Anticollision. Logic XTO XTI RFO1 RFO2 RFI1 RFI2 SPI FIFO Bias Transmitter A/D Converter Receiver External Field Detector Regulators FIFO Control Logic SPI Interface Framing Phase & Amplitude Detector Oscillator AS3909/10 HF RFID Reader IC Block Diagram |
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