Measured on the TI CC2640Q1EM-7ID reference design with Tc = 25°C, VDDS = 3.0 V, unless otherwise noted. PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
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Calibrated frequency(1) | | | 32.8 | | kHz |
Temperature coefficient | | | 50 | | ppm/°C |
(1) The frequency accuracy of the real time clock (RTC) is not directly dependent on the frequency accuracy of the 32-kHz RC oscillator. The RTC can be calibrated by measuring the frequency error of RCOSC_LF relative to XOSC_HF and compensating the RTC tick speed.