• Part: ST25R3911B
  • Description: High performance HF reader / NFC initiator
  • Manufacturer: STMicroelectronics
  • Size: 1.64 MB
ST25R3911B Datasheet (PDF) Download
STMicroelectronics
ST25R3911B

Description

The ST25R3911B is a highly integrated NFC Initiator / HF reader IC, including the analog front end (AFE) and a highly integrated data framing system for ISO 18092 (NFCIP-1) initiator, ISO 18092 (NFCIP-1) active target, ISO 14443A and B reader (including high bit rates), ISO 15693 reader and FeliCa™ reader.

Key Features

  • ISO 18092 (NFCIP-1) Active P2P
  • ISO14443A, ISO14443B, ISO15693 and FeliCa™
  • Supports VHBR (3.4 Mbit/s PICC to PCD framing, 6.8 Mbit/s AFE and PCD to
  • Capacitive sensing - Wake-up
  • Automatic antenna tuning system providing tuning of antenna LC tank
  • Automatic modulation index adjustment
  • AM and PM demodulator channels with automatic selection
  • DPO (Dynamic power output)
  • Up to 1.4 W in case of differential output
  • User selectable and automatic gain control