XRA00 Datasheet, PDF (9/40 Pages) STMicroelectronics – UHF, EPCglobal, Contactless Memory IC 96 bit ePC with Inventory and Kill Function

XRA00
Table 2. Request Modulation Pulse Parameters for North American Operation (−20 to 55°C)
Symbol
Description
Min
Max Units
F_C
UHF Carrier Frequency
900
930 MHz
t₀
Master Clock Time Period for a single bit sent to the XRA00
12.5
16.6
µs
T_0Tol
Master Clock Time Period Tolerance
-1
+1
%
1/t₀
Request Frame Data Rate (1/t₀)
60
80
Kbps
T_fwhm0
Pulse Modulation Width of Binary Data 0 at 50% Level
1/8 * T₀
µs
T_fwhm1
Pulse Modulation Width of Binary Data 1 at 50% Level
3/8 * T₀
µs
T_fwhmBin
Pulse Modulation Width of Bin Pulse at 50% Level
3/8 * T₀
µs
T_trangap
Pulse Modulation Width of Transaction Gap at 50% Level
10/8 * T₀
µs
T_fwhmBinRW Bin Response Window at 50% Level
4*T₀
8*T₀
µs
T_transetup
Delay between Transaction Gap and Data Modulation Windows
64
µs
T_tranhold
Delay before the next Transaction Gap
2.5*T₀ 2000
µs
t_f
Pulse Modulation Fall Time (90% to 10% level)
300
ns
t_r
Pulse Modulation Rise Time (10% to 90% level)
300
ns
Ripple
Ripple
10
%
MOD
Pulse Modulation Depth
80
100
%
t_Coast
Delay between Request EOF and the next Transaction Gap
20
ms
t_Reset
RF Off time to Power down a XRA00
200
µs
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