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AS3914 Automotive NFC/HF Reader

High Performance HF Reader IC for Automotive Environment

The AS3914 is a high performance NFC/HF Reader IC designed for the automotive market. High output power makes designs in metal environment and small form factors like door handles easy. Unique features include Antenna Auto Tuning, 1W of output power and capacitive Wakeup.

Diagram of the AS3914 Automotive Reader IC

Key Features

  • Up to 1W of output power
  • Unique automatic antenna tuning
  • Capacitive/inductive Wakeup function as low as 5µA consumption
  • AEC-Q100 qualified
  • Automatic modulation depth adjustment

Key Benefits

  • No external Power Amplifier required
  • Reliable performance even in a metallic environment
  • Low power consumption
  • Faster design times

AS3914 Applications

  • Car Access
  • Driver Authentication
  • Data Transfer
  • Car Service
  • Pairing

AS3914 Product Facts

Protocols supported / Standard [ ] ISO 14443A/B (848kbps)
ISO 15693
ISO 18092 (NFC active)
Frequency [ MHz] 13.56
Antenna management [ ]
Wakeup [ ] Capacitive & Inductive
Closed loop modulation depth adjustment
Max. output power [mW] 1000
Datarate [kbps] up to 848
Supply voltage [V] 2.4 - 5.5
Temperature range [°C] -40 to +125
Package QFN-32 (5x5)
ISM Range [MHz]
TX Modulation
Sensitivity [dBm]
Output Power [dBm]
Link Frequencies Supported [kHz]
Coding [V]