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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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ST25DV64K Scheda tecnica(PDF) 107 Page - STMicroelectronics |
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ST25DV64K Scheda tecnica(HTML) 107 Page - STMicroelectronics |
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107 / 220 page  DocID027603 Rev 4 107/220 ST25DV04K ST25DV16K ST25DV64K RF operations 219 From the time the VCD has generated the rising edge of an EOF: • If this EOF is 100% modulated, the VCD waits for a time at least equal to t3min for 100% modulation before sending a new EOF. • If this EOF is 10% modulated, the VCD waits for a time at least equal to t3min for 10% modulation before sending a new EOF. Table 63. Timing values(1) Minimum (min) values Nominal (nom) values Maximum (max) values 100% modulation 10% modulation t1 4320 / fc = 318.6 µs 4352 / fc = 320.9 µs 4384 / fc = 323.3 µs(2) t2 4192 / fc = 309.2 µs No tnom No tmax t3 t1max(3)(3) + tSOF(4) t1max(3) + tNRT(5) + t2min No tnom No tmax 1. The tolerance of specific timings is ± 32/fC. 2. VCD request will not be interpreted during the first milliseconds following the RF field rising. 3. t1max does not apply for write-alike requests. Timing conditions for write-alike requests are defined in the command description. 4. tSOF is the time taken by the ST25DVxxx to transmit an SOF to the VCD. tSOF depends on the current data rate: High data rate or Low data rate. 5. tNRT is the nominal response time of the ST25DVxxx. tNRT depends on VICC to ST25DVxxx data rate and subcarrier modulation mode. |
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