Bits 7:4 – VCOB[3:0] VCO
Bias
The VCOB[3:0]
setting controls the amplitude of the VCO. In firmware this frequency-dependent
value is stored in the EEPROM configuration for each service. In addition, it is
corrected with a factory calibration value.
Bits 3:0 – CPCC[3:0] Charge Pump Current Control
The CPCC[3:0] setting controls
the charge pump current in the fractional-N PLL and, as a result, the loop bandwidth
of the fractional-N PLL. In firmware, this frequency-dependent value is stored in
the EEPROM configuration for each service. In addition, it is corrected with a
factory calibration value.
