SPRUIW9C October 2021 – March 2024 TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1
In systems, the modulator clock can be generated using PWMs. Assuming all the SD-CLKs see the same delay on board traces, you can potentially use just one clock to clock multiple filters; thereby, saving on the number of pins used for SDFM. To enable this, Filter1 SDCLK (SD-C1) can possibly apply to other filter channels if required. The SDCTLPARAMx.SDCLKSEL register bit field can be configured to select filter channel SDCLK. See Figure 19-6 to view this feature.