NFC Forum-Compliant Frontend IC with Superior RF Performance for Automotive

NCx3321

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The NCx3321 is an automotive-grade and NFC Forum-compliant frontend IC optimized for smart car access applications. The NCx3321 offers outstanding RF performance in terms of the maximum RF power combined with dynamic power control (DPC) and excellent receiver sensitivity.

The NCx3321 also sets new benchmarks for ultra-low power card detection and self-diagnostics, making it an ideal solution for door handle/bi-pillar and center console applications. The NCx3321 is accompanied by an automotive NFC (aNFC) reader library, which is easily portable across different MCUs.

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Block Diagram

NCx3321 Block Diagram

NCx3321 Block Diagram
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Features

Key Features

  • NFC frontend IC supporting all relevant 13.56 MHz RF protocols, reader/writer, P2P and card emulation modes
  • High power (up to 1.75 W) transmitter with dynamic power control operating autonomously from the host MCU
  • Receiver with enhanced sensitivity, noise immunity and integrated EMD handling
  • Active load modulation in card emulation mode for large operating distance
  • Support of NXP proprietary high data rates up to 212 Kbit for communication with NCx3310 (tag type 5)
  • Ultra-low power and low power card detection modes
  • Overcurrent and overtemperature protection mechanisms
  • RF Debugging either AUX0, AUX1, AUX2 outputs or without external probing of test signals
  • Compliant to NFC Forum CR13 as CCC device class
  • SPI host interface with speeds up to 15 MHz
  • Wide temperature range: -40 °C to +105 °C

Part numbers include: NCF3321AHF, NCJ3321AHF.

Documentation

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Software

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Note: For better experience, software downloads are recommended on desktop.

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