LRI64 datasheet(10/52 Pages) STMICROELECTRONICS

Part #	LRI64

Description	Memory TAG IC at 13.56 MHz, with 64-bit Unique ID and WORM user area, ISO15693 and ISO18000-3 Mode 1 compliant

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Power transfer

LRI64

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4

Power transfer

Power transfer to the LRI64 is accomplished by inductive coupling of the 13.56MHz radio

signal between the antennas of the LRI64 and VCD. The RF field transmitted by the VCD

induces an AC voltage on the LRI64 antenna, which is then rectified, smoothed and voltage-

regulated. Any amplitude modulation present on the signal is demodulated by the Amplitude

Shift Keying (ASK) demodulator.

4.1

Frequency

ISO 15693 and ISO 18000-3 Mode 1 standards define the carrier frequency (fC) of the

operating field to be 13.56MHz±7kHz.

4.2

Operating field

The LRI64 operates continuously between Hmin and Hmax.

●

The minimum operating field is Hmin and has a value of 150mA/m (rms).

●

The maximum operating field is Hmax and has a value of 5A/m (rms).

A VCD generates a field of at least Hmin and not exceeding Hmax in the operating volume.

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