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AS3911 Datasheet(PDF) 8 Page - ams AG |
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AS3911 Datasheet(HTML) 8 Page - ams AG |
8 / 149 page AS3911 – 8 ams Datasheet, Confidential: 2013-Oct [2-03] E l ec t r i c al C h a r ac teri sti c s All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. Operating Conditions All defined tolerances for external components in this specification need to be assured over the whole operation condition range and also over lifetime. Figure 6: Operating Conditions DC/AC Characteristics for Digital Inputs and Outputs CMOS Inputs: Valid for input pins /SS, MOSI, and SCLK Figure 7: CMOS Inputs Symbol Parameter Min Max Unit Comments VDD Positive supply voltage 2.4 5.5 V In case power supply is lower than 2.6V, PSSR cannot be improved using internal regulators (minimum regulated voltage is 2.4V) VDD_IO Peripheral communication supply voltage 1.65 5.5 V VSS Negative supply voltage 0 0 V TJUN Junction temperature -40 125 °C VRFI_A RFI input amplitude 150 milli 3 Vpp Minimum RFI input signal definition is meant for NFC receive mode. In HF reader mode and NFC transmit mode, the recommended signal level is 2.5Vpp Symbol Parameter Min Max Unit VIH High level input voltage 0.7 * VDD_IO V VIL Low level input voltage 0.3 * VDD_IO V ILEAK Input leakage current 1 μA Electrical Characteristics |
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