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LRI64-A1S/XXX Datasheet(PDF) 26 Page - STMicroelectronics |
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LRI64-A1S/XXX Datasheet(HTML) 26 Page - STMicroelectronics |
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26 / 38 page ![]() LRI64 26/38 DC AND AC PARAMETERS This section summarizes the operating and mea- surement conditions, and the DC and AC charac- teristics of the device. The parameters in the DC and AC Characteristic tables that follow are de- rived from tests performed under the Measure- ment 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 parame- ters. Table 12. Operating Conditions Figure 39. LRI64 Synchronous Timing, Transmit and Receive Figure 39. shows an ASK modulated signal, from the VCD to the LRI64. The test condition for the AC/DC parameters are: – Close coupling condition with tester antenna (1mm) – Gives LRI64 performance on tag antenna Table 13. DC Characteristics Note: 1. TA=–20 to 85°C Symbol Parameter Min. Max. Unit TA Ambient Operating Temperature –20 85 °C AI06680B AB tRFF tRFR tRFSBL tMIN CD fCC Symbol Parameter Test Conditions 1 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 =3.0V 50 µA Write VCC =3.0V 150 µA CTUN Internal Tuning Capacitor f=13.56MHz for W4/1 21 pF f=13.56MHz for W4/2 28.5 pF |
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