Analog Technical Specification

This specification addresses the analog characteristics of the RF interface of the NFC-enabled device. The purpose of the specification is to characterize and specify the externally observable signals for an NFC-Enabled Device without specifying the design of the antenna of an NFC-Enabled Device. This includes power requirements (determining operating volume), transmission requirements, receiver requirements, and signal forms (time/frequency/modulation characteristics).
This specification is intended for use by manufacturers wanting to implement an NFC-enabled device. Its scope covers the analog interface of the NFC-enabled device in its five roles (Peer Mode Initiator, Peer Mode Target, Reader/Writer Mode, Wireless charging, and Card Emulation Mode) for all three technologies (NFC-A, NFC-B, and NFC-F) and for all the different bit rates (106kbps, 212kbps, and 424kbps).

The Analog 2.0 Specification introduced Active Communication Mode for P2P data exchange and NFC-V technology in poll mode. Version 2.0 ensures full interoperability with devices conformant to ISO/IEC 14443 or ISO/IEC 18092 by harmonizing the analog parameter for the contactless communication. This interoperability is important to enable the reliable usage of NFC devices with existing infrastructure using ISO compatible RF readers and/or cards (e.g. for contactless public transport applications). The 2.1 Version introduces some alignments to EMVCo and the NFC-V Listen mode requirements.

Version 2.2 of the Analog technical specification reflects the removal of NFC Forum Type 1 Tag features from Technical Specification Release 2021 to simplify the implementation of future NFC enabled devices without reducing the user experience.

Version 2.3 of the Analog technical specification includes 8-Shaped Coil in the Glossary as well as a mandatory part of the Reference Equipment.