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EM4097 Datasheet READ/WRITE ANALOG FRONT-END

Manufacturer: EM Microelectronic (Swatch Group)

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General Description

The EM4097 (previously named P4097) chip is a CMOS integrated transceiver circuit intended for use in an RFID basestation to perform the following functions:  Antenna driving with carrier frequency to transfer energy to the transponder  Data transfer to writable transponder by amplitude modulation (ASK) of the field (100% modulation ratio, called OOK, “on”-“off” keying)  Data transfer from transponder by amplitude- or phase demodulation (ASK or PSK)  µC Interface to communicate with a microprocessor

Overview

EM MICROELECTRONIC - MARIN SA EM4097 READ/WRITE ANALOG FRONT END IC WITH SERIAL µC INTERFACE FOR USAGE IN 125 / 134.

Key Features

  • Integrated PLL system to achieve self adaptive carrier frequency to antenna resonant frequency.
  • Chip can be forced to run with external clock, division ratio 32.
  • 100kHz to 150kHz carrier frequency range Read/Write Mode using internal PLL signal.
  • Direct antenna driving using bridge driver.
  • Data transmission by OOK (100% Amplitude Modulation) using bridge driver.
  • Multiple transponder protocol compatibility, (Ex. : EM4102, EM4200, EM4450 and EM4205/EM4305).

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