Readback is useful for getting information
regarding the device status. Fields that can be read back are:
- Raw register values to confirm programming.
- VCO lock detect status (rb_LD).
- VCO calibration information (rb_VCO_SEL; rb_VCO_CAPCTRL;
rb_VCO_DACISET).
- Die temperature (rb_TEMP_SENS). To use this feature, set TEMPSENSE =
1. Equation 3 calculates the readback temperature:
Equation 3. Temperature [°C]
= 0.85 × rb_TEMP_SENSE – 415
Measurement accuracy is ± 5 °C.