NFCT Electrical specification
NFCT Electrical Specification
| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| fc | Frequency of operation | 12.55 | 13.56 | 13.57 | MHz |
| CMI | Carrier modulation index | 95 | % | ||
| DR | Data Rate | 106 | kbps | ||
| Vsense | Peak differential field detect threshold level on NFC1-NFC2, with input being high impedance in sense mode | 1.3 | Vp | ||
| Imax | Maximum input current on NFCT pins | 80 | 130 | mA |
NFCT Timing Parameters
| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| tactivate | Time from task_ACTIVATE in SENSE or DISABLE state to ACTIVATE_A or IDLE state, excluding voltage supply and oscillator startup times | 625 | µs | ||
| tsense | Time from remote field is present in SENSE mode to FIELDDETECTED event is asserted | 7.2 | µs |
