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When the DPLL is not used, the APLLs support an APLL-only mode with a programmable 24-bit denominator.
Support for this mode is currently not implemented in the TICS Pro software.
Figure 6-13. APLL1 Page
shows the post divider for PLL2.
shows the post divider for PLL3. PLL3 supports all
outputs of the LMK5B33216.
Figure 6-14. PLL2 Post Divider
Figure 6-15. PLL3 Dividers
6.4.1 APLL DCO
To use the DCO shift controls on a given APLL, enter the DCO ppb step value into the
DCO Step Size (ppb)
box shown below. The entered step size will be used to calculate a numerator deviation and a 2s complement
numerator deviation. To perform the shift, the increment or decrement button must be pressed. An increment
will write the numerator deviation to the DPLLx_FREE_RUN control which will result in a positive frequency shift
in the amount specified by the
DCO Step Size (ppb)
. An decrement will write the 2s complement numerator
deviation to the DPLLx_FREE_RUN control which will result in a negative frequency shift in the amount specified
by the
DCO Step Size (ppb)
.
Appendix A - TICS Pro LMK5B33216 Software
SNAU263A – FEBRUARY 2022 – REVISED JULY 2022
LMK5B33216EVM User's Guide
39
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