SRTAG2K-D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
SRTAG2K-D
STMicroelectronics
'SRTAG2K-D' PDF : 51 Pages View PDF
RF electrical parameters
11 RF electrical parameters
SRTAG2K-D
This section summarizes the operating and measurement conditions, and the DC and AC
characteristics of the device in RF mode.
The parameters in the DC and AC characteristics 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 56. Default operating conditions
Symbol
Parameter
Min.
Max.
Unit
TA
Ambient operating temperature
–40
85
°C
Table 57. RF characteristics (1)
Symbol
Parameter
Condition
Min
Typ Max Unit
fC
H_ISO
External RF signal frequency
Operating field according to ISO
H_Extended
Operating field in extended
temperature range
TA = 0 °C to 50 °C
TA = -40 °C to 85 °C
13.553
1500
500
13.56 13.567 MHz
-
7500 mA/m
-
7500 mA/m
MICARRIER
t1
t2
t3
t4
tMIN CD
100% carrier modulation index
Pause A length
Pause A low time
Pause A rise time
Pause A rise time section
Minimum time from carrier
generation to first data
MI=(A-B)/(A+B)
-
-
-
-
From H-field min
90
28/fC
7/fC
1.5xt4
0
-
-
100
%
-
40.5/fC µs
-
t1
µs
-
16/fC µs
-
6/fC
µs
-
5
ms
Wt
RF write time (including internal
Verify) for one page
-
-
6
-
ms
CTUN
Internal tuning capacitor in SO8 (2)
fC = 13.56 MHz
22.5
25
27.5 pF
tRF_OFF RF OFF time
Chip reset
-
-
5
ms
1. All timing characterizations were performed on a reference antenna with the following characteristics:
External size: 75 mm x 48 mm
Number of turns: 6
Width of conductor: 0.6 mm
Space between two conductors: 0.6 mm
Value of the tuning capacitor in SO8: 25 pF (SRTAG2K-D)
Value of the coil: 5 µH
Tuning frequency: 14.2 MHz.
2. Characterized only, at room temperature only, measured at VAC0-VAC1 = 2 V peak to peak at 13.56 MHz.
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DocID025446 Rev 3
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