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ST25TA02K-PC6H5 Arkusz danych(PDF) 11 Page - STMicroelectronics |
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ST25TA02K-PC6H5 Arkusz danych(HTML) 11 Page - STMicroelectronics |
11 / 64 page DocID027794 Rev 2 11/64 ST25TA02K-P Signal descriptions 2 Signal descriptions 2.1 Antenna coil (AC0, AC1) These inputs are used to connect the device to an external coil exclusively. It is advised not to connect any other DC or AC path to AC0 or AC1. When correctly tuned, the coil is used to access the device using NFC Forum Type 4 commands. 2.2 Ground (VSS) VSS, when connected, is the reference for the VDCG supply voltage for all pads, even AC0 and AC1. 2.3 GPO Supply voltage (VDCG) This pin can be connected to an external DC supply voltage. It only supplies the GPO driver block. 2.3.1 Operating supply voltage VDCG Prior to checking ST25TA02K-P GPO, a valid and stable VDCG voltage within the specified [VDCG(min), VDCG(max)] range must be applied. To maintain a stable DC supply voltage, it is recommended to decouple the VDCG line with suitable capacitors (usually of the order of 10 nF and 100 pF) close to the VDCG/VSS package pins. This voltage must remain stable and valid until the end of the GPO usage by the ST25TA02K-P. 2.3.2 Power-up conditions The VDCG rise time must not vary faster than 1 V/µs. |
Podobny numer części - ST25TA02K-PC6H5 |
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Podobny opis - ST25TA02K-PC6H5 |
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