Hi, expert:
Customer is asking questions about TDA4VM outputs 25MHz clock for DS90UB960 (as the reference clock ).
Assume both CPSW2G and CPSW9G are already used, the MCU_CLKOUT0 and CLKOUT are both used as reference clock to external Ethernet PHYs.
WKUP_OSC0 Crystal is ±50 ppm.
Below is the requirement for UB960 REFCLK input:
If certain module is not used (PLL15_AUDIO1-PLL or PLL24_MLB-PLL), can we use MCU_OBSCLK or OBSCLKx or AUDIO_EXT_REFCLKx to output this 25MHz reference clock?
Another example, can we use MCU_OBSCLK0 to output MCU_PLL2_HSDIVx_CLKOUT for this purpose? (in this case, R5F in MCU_island can turn the reference clock on for early camera use-case).
Are there any other options for the TDA4VM to output 25MHz clock to be used as the reference clock to UB960?
Thanks.
