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LRI2K датащи(PDF) 78 Page - STMicroelectronics |
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LRI2K датащи(HTML) 78 Page - STMicroelectronics |
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78 / 89 page ![]() DC and AC parameters LRI2K 78/89 Figure 61. LRI2K synchronous timing, transmit and receive Figure 61 shows an ASK modulated signal, from the VCD to the LRI2K. The test condition for the AC/DC parameters are: ● Close coupling condition with tester antenna (1mm) ● LRI2K performance measured at the tag antenna Table 90. DC characteristics(1) 1. TA = –20 to 85°C. Symbol Parameter Test conditions Min. Typ. Max. Unit VCC Regulated voltage 1.5 3.0 V VRET Retromodulated induced voltage ISO10373-7 10 mV ICC Supply current Read VCC = 3.0 V 50 µA Write VCC = 3.0 V 150 µA CTUN Internal tuning capacitor f=13.56 MHz for W4/1 21 pF f=13.56 MHz for W4/2 28.5 pF f=13.56 MHz for W4/3 97 pF Table 91. Operating conditions Symbol Parameter Min. Max. Unit TA Ambient operating temperature –20 85 °C AI06680 AB tRFF tRFR tRFSBL tMAX tMIN CD fCC |
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