Interfaces

ISO 14443 Dual-interface Analog Front End

Overview
​The ISO 14443 Dual-interface Analog Front End (AFE) is a fully integrated analog IP intended for dual-interface (i.e. contact and contactless) Integrated Circuit Card (ICC).

Specifications

Benefits

​​​ISO/IEC 14443-A/B compliant
ISO/IEC 10373-6 compliant
NFC-WI (ECMA 373) compliant
Wireless power harvesting
Silicon proven

Features

Fully compliant with the ISO/IEC 14443 standard
Fully compliant with​ the relevant ISO/IEC 10373-6 tests
Both contact - class A, B & C - and contactless transmission of power
Support both Type A and Type B transmission protocols
Supported bit rates (Rx and Tx):

  • classical: 106, 212, 424 and 848 kbit/s
  • VHBR (optional): 1.69 Mbit/s and 3.39 Mbit/s (Rx at 3.39 Mbit/s under validation)

RF front end including the antenna pads, a tuning capacitor, several demodulators, a clock extractor and a load modulator
Dual power manager including a power switch, a voltage regulator, a voltage reference, a variable frequency oscillator, a power-on reset and a supply monitor
Operating junction temperature range: -25°C to +85°C
Straightforward integration through a NFC-WI (ECMA 373) standard interface
Silicon proven in 130 nm and 55 nm CMOS processes
Electrical characteristics of a 55 nm implementation:

  • generated core supply voltage (vdd): 1.2 V ±10%
  • generated NVM supply voltage (vdd_nvm): 1.55 V ±5%
  • delivered supply currents up to 7 mA (Ivdd) and 7 mA (Ivdd_nvm)
  • typical operating quiescent current of 200 µA
  • maximum standby quiescent current at 25°C smaller than 65 µA
  • silicon area smaller than 0.85 mm²

Type A and Type B digital controllers available separately

Deliverables

GDSII stream and layer map file
Library Exchange Format (LEF) file
Circuit Description Language (CDL) netlist
Liberty Timing File (.lib)
VHDL behavioral model
Design specification