ISO/IEC 14443-2:2020/Cor 2:2023

Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface - Technical Corrigendum 2

Cartes et dispositifs de sécurité pour l'identification personnelle — Objets sans contact de proximité — Partie 2: Interface radiofréquence et des signaux de communication — Rectificatif technique 2

General Information

• Status: Published
• Publication Date: 04-Sep-2023
• ICS: 35.240.15 - Identification cards. Chip cards. Biometrics
• Technical Committee: ISO/IEC JTC 1/SC 17 - Cards and security devices for personal identification
• Drafting Committee: ISO/IEC JTC 1/SC 17 - Cards and security devices for personal identification
• Current Stage: 6060 - International Standard published
• Start Date: 05-Sep-2023
• Completion Date: 05-Sep-2023

Relations

• Corrects: ISO/IEC 14443-2:2020 - Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface
• Effective Date: 22-Apr-2023

Overview

ISO/IEC 14443-2:2020/Cor.2:2023 is Technical Corrigendum 2 to Part 2 of the ISO/IEC 14443 family - the international standard for cards and security devices for personal identification - contactless proximity objects. Published September 2023 and prepared by ISO/IEC JTC 1/SC 17, this corrigendum updates and clarifies the radio-frequency power and signal interface requirements used for proximity cards (PICC) and proximity coupling devices (PCD).

Key topics and technical changes

This corrigendum focuses on clarifications and corrections to measurement and test definitions in Part 2, notably:

• Phase difference and timing definitions (subclause 8.2.2.3)
  • Replaces the prior text with a clarified method to compute phase angles (Ø), ordered occurrences (Ø′, Ø″), ΔØ and derived metrics used to quantify phase behavior across subcarrier periods.
  • Defines how to select signed vs. absolute maximum phase variation and how to compute the intrastate phase drift metric from ΔØ values across subcarrier periods.
• Time-domain illustration update (Figure 14)
  • Provides an updated plot key to show subcarrier cycles, phase samples (Ø), and derived quantities (Ø′, Ø″, ΔØ, Øsecond, ΔØ-E) used in PICC response analysis.
• Load modulation amplitude limits (Table 24)
  • Replaces the previous table with corrected VLMA (load modulation amplitude) min/max limits expressed in peak millivolts for multiple reference PICC classes (1–6) and for different subcarrier frequency conditions (fc/16 and >fc/16). It also references the appropriate test PCD assemblies.

Applications and who uses this standard

• Smart card and NFC designers - ensure RF modulation, subcarrier timing and phase behavior meet international conformance for proximity interfaces.
• Test laboratories and conformance suites - apply corrected definitions and updated VLMA limits when validating PICC/PCD interoperability.
• Payment, access control and identity solution integrators - rely on the clarified RF interface requirements to achieve reliable contactless communication.
• Component and silicon vendors - use the corrected measurement methods for antenna and modem characterization.

Related standards

• ISO/IEC 14443 (other parts) - logical protocols, initialization, and transmission protocols for proximity cards.
• ISO/IEC JTC 1/SC 17 publications - other card and security-device standards.

Keywords: ISO/IEC 14443-2, contactless proximity, radio frequency power, signal interface, technical corrigendum, PICC, PCD, load modulation, phase drift, NFC, smart card compliance.

Standards Content (Sample)

ISO/IEC 14443-2:2020/Cor.2:2023(E)
INTERNATIONAL STANDARD ISO/IEC 14443-2:2020
TECHNICAL CORRIGENDUM 2
Published 2023-09
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
INTERNATIONAL ELECTROTECHNICAL COMMISSION • МЕЖДУНАРОДНАЯ ЭЛЕКТРОТЕХНИЧЕСКАЯ КОМИССИЯ • COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE

Cards and security devices for personal identification —
Contactless proximity objects — Part 2: Radio frequency
power and signal interface
TECHNICAL CORRIGENDUM 2
Cartes et dispositifs de sécurité pour l'identification personnelle — Objets sans contact de proximité —
Partie 2: Interface radiofréquence et des signaux de communication
RECTIFICATIF TECHNIQUE 2
Technical Corrigendum 2 to ISO/IEC 14443-2:2020 was prepared by Joint Technical Committee
ISO/IEC JTC 1, Information technology, Subcommittee SC 17, Cards and security devices for personal
identification.
ICS 35.240.15 Ref. No. ISO/IEC 14443-2:2020/Cor.2:2023(E)
©  ISO/IEC 2023 – All rights reserved
Published in Switzerland
ISO/IEC 14443-2:2020/Cor.2:2023(E)

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2 ©  ISO/IEC 2023 – All rights reserved

ISO/IEC 14443-2:2020/Cor.2:2023(E)
Cards and security devices for personal identification —
Contactless proximity objects — Part 2: Radio frequency
power and signal interface
TECHNICAL CORRIGENDUM 2
Page 25, 8.2.2.3
Replace all of the text in the subclause before Figure 13 by the following:

For each subcarrier period:
— Ø is defined as the argument of all differences between sections in the occurrence of MS1 and the
LM
corresponding sections in the occurrence of MS2 in the same subcarrier period, as illustrated in
Figure 13;
— there is an absolute maximum and an absolute minimum of Ø ; Ø’ is defined as the one which
LM LM
occurs first in time, Ø’’LM is the one which occurs secondly, then
ΔØ = Ø’’ – Ø’ ;
LM LM LM
— with Ø being the maximum absolute difference between Ø’ and any Ø occurring before Ø’
LM-le
...