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LRI2K Fiches technique(PDF) 77 Page - STMicroelectronics

No de pièce LRI2K
Description  2048-bit EEPROM tag IC at 13.56 MHz, with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant
PDF  89 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRI2K Fiches technique(HTML) 77 Page - STMicroelectronics

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LRI2K
DC and AC parameters
77/89
22
DC and AC parameters
This section summarizes the operating and measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC Characteristic tables that
follow are derived from tests performed under the Measurement Conditions summarized in
the relevant tables. Designers should check that the operating conditions in their circuit
match the measurement conditions when relying on the quoted parameters.
Table 89.
AC characteristics(1) (2)
1.
TA = –20 to 85°C.
2.
All timing measurements were performed on a reference antenna with the following characteristics:
External size: 75 mm x 48 mm
Number of turns: 6
Width of conductor: 1 mm
Space between 2 conductors: 0.4 mm
Value of the tuning capacitor: 28.5 pF (LRI2K-W4)
Value of the coil: 4.3 µH
Tuning frequency: 13.8 MHz.
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fCC
External RF signal frequency
13.553
13.56
13.567 MHz
MICARRIER 10% carrier modulation index
MI=(A-B)/(A+B)
10
30
%
tRFR,tRFF
10% rise and fall time
0.5
3.0
µs
tRFSBL
10% minimum pulse width for bit
7.1
9.44
µs
MICARRIER 100% carrier modulation index
MI=(A-B)/(A+B)
95
100
%
tRFR,tRFF
100% rise and fall time
0.5
3.5
µs
tRFSBL
100% minimum pulse width for bit
7.1
9.44
µs
tJIT
Bit pulse jitter
–2
+2
µs
tMIN CD
Minimum time from carrier
generation to first data
From H-field min
0.1
1
ms
fSH
Subcarrier frequency high
FCC/32
423.75
kHz
fSL
Subcarrier frequency low
FCC/28
484.28
kHz
t1
Time for LRI2K response
4224/FS
318.6
320.9
323.3
µs
t2
Time between command
4224/FS
309
311.5
314
µs
tW
Programming time
5.8
ms



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