SL3ICS1002FUG datasheet(16/51 Pages) NXP

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139037

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Product data sheet

COMPANY PUBLIC

Rev. 3.7 — 9 October 2012

139037

16 of 51

NXP Semiconductors

SL3ICS1002/1202

UCODE G2XM and G2XL

12.3 Operating distances

RFID tags based on the UCODE G2X silicon may achieve maximum operating distances

according the following formula:

(1)

(2)

[1]

CEPT/ETSI regulations [CEPT1], [ETSI1].

[2]

New CEPT/ETSI regulations. [ETSI3].

[3]

FCC 47 part 15 regulation [FCC1].

[4]

These read distances are maximum values for general tags and labels. Practical usable values may be

lower due to damping by object materials and environmental conditions. A special tag antenna design can

help achieve higher values.

The typical write range is > 50% of the read range.

Table 10.

Symbol description

Symbol

Description

Unit

Ptag

minimum required RF power for the tag

Gtag

gain of the tag antenna

EIRP

transmitted RF power



wavelength

Rmax

maximum achieved operating distance for a /2-dipole



loss factor assumed to be 0.5 considering matching and

package losses

Rdistance

Table 11.

Operating distances for UCODE G2X based tags and labels in released frequency

bands

Frequency range

Region

Available

power

Calculated read distance

single antenna [4]

Unit

868.4 to 868.65 MHz (UHF) Europe [1]

0.5 W ERP

3.6

865.5 to 867.6 MHz (UHF)

Europe [2]

2 W ERP

7.1

902 to 928 MHz (UHF)

America [3]

4 W EIRP

7.5

tag

EIRP G

tag



R

----------









max

EIRP G

tag









tag

---------------------------------------





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