15 - 12 |
|
R/W |
0h |
Program 0h to this field. |
11 |
RAMP_THRESH[32] |
R/W |
0h |
The 33rd bit of RAMP_THRESH.
RAMP_THRESH sets how much the ramp can change the VCO frequency before a VCO calibration is required. If the frequency is chosen to be Δf, then RAMP_THRESH = (Δf / fPD) × 224. |
10 |
|
R/W |
0h |
Program 0h to this field. |
9 |
QUICK_RECAL_EN |
R/W |
0h |
This sets the initial VCO starting calibration values. Especially useful if the frequency change is smaller, say < 50 MHz or so.
0: Calibration starts with VCO_SEL, VCO_CAPCTRL_START, VCO_DACISET_START
1: Calibration starts with the current value |
8 - 1 |
VCO_CAPCTRL_STRT |
R/W |
32h |
This sets the starting VCO_CAPCTRL value that is used for VCO frequency calibration. Smaller values yield a higher frequency band within a VCO core. Valid number range is 0 to 183. |
0 |
|
R/W |
0h |
Program 1h to this field. |