DLPS223A December 2021 – February 2023 DLPC4430
PRODUCTION DATA
It is recommended that the DLPC4430 controller power delivery system provides two independent 1.8V power sources. One of the 1.8V power sources is used to supply 1.8V power to the controller LVDS I/O and internal DRAM. Power for these functions is fed from a common source which is recommended to be a linear regulator. The second 1.8V power source is used (along with appropriate filtering as discussed in the PCB layout guidelines for internal ASIC PLL power section of this document) to supply all of the DLPC4430 controller internal PLLs. In order to keep this power as clean as possible, a dedicated linear regulator for the 1.8V power to the PLLs is recommended.