lri2k STMicroelectronics, lri2k Datasheet - Page 77

• Manufacturer Part Number: lri2k
• Description: 13.56 Mhz, 2048-bit Eeprom Tag Ic With 64-bit Uid And Kill Code, Iso 15693 And Iso 18000-3 Mode 1 Compliant
• Manufacturer: STMicroelectronics

LRI2K
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.
1. T
2. All timing measurements were performed on a reference antenna with the following characteristics:
MI
MI
t
t
RFR
RFR
Symbol
t
t
t
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.
MIN CD
CARRIER
CARRIER
RFSBL
RFSBL
A
f
t
f
f
t
CC
JIT
SH
SL
t
t
, t
, t
W
= –20 to 85°C.
1
2
RFF
RFF
AC characteristics
External RF signal frequency
10% carrier modulation index
10% rise and fall time
10% minimum pulse width for bit
100% carrier modulation index
100% rise and fall time
100% minimum pulse width for bit
Bit pulse jitter
Minimum time from carrier
generation to first data
Subcarrier frequency high
Subcarrier frequency low
Time for LRI2K response
Time between command
Programming time
Parameter
(1) (2)
From H-field min
MI=(A-B)/(A+B)
MI=(A-B)/(A+B)
Condition
4224/F
4224/F
F
F
CC
CC
/32
/28
S
S
13.553 13.56 13.567 MHz
318.6
Min
309
0.5
7.1
0.5
7.1
10
95
–2
DC and AC parameters
423.75
484.28
320.9
311.5
Typ
0.1
323.3
9.44
9.44
Max
100
314
3.0
3.5
5.8
+2
30
1
77/89
Unit
kHz
kHz
ms
ms
µs
µs
µs
µs
µs
µs
µs
%
%