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TMS320F28377S: MAX PWM frequency when used HRPWM

Part Number: TMS320F28377S

Hi C2000 Champion

My customer want to use F28377S PWM to generate 20MHz CLK for SDFM module and AMC1305/AD7403, but the 20MHZ PWM CLK  duty only 40%, which cannot meet AD7403 clock requirement, so customer what to use HRPWM function to get 50% duty under 20MHZ PWM.

But I check the reference guide, in the table below show the max PWM frequency is limit to 5MHZ under 100MHz SYSCLKOUT. Meanwhile, when I run the hrpwm_duty_sfo_cpu01 example in 20MHz PWM, it also cannot work normal to get 50% duty.

So I want to confirm whether HRPWM have limit on PWM frequency.

Thank you!