SDK • Re: PIO clock source other than sys_clk?

ADAU17xx, PCM51xx... all of them use PLLs, which work well for the performance they are claiming... You never see PLLs in high-end DACs.

I think I'd phrase that as 'very high end DACs' but I agree that becomes the limiting factor eventually, hence it being separated out in for example the latest AKM and TI devices.

But if you're after that standard of audio performance which you didn't mention before then why limit yourself to one $1 MCU ?
And to USB, not Ethernet ?

The solution seem to be to tune my PIO to resync every frame and then have D flip-flops externally to attenuate the jitter.

Won't the D-types cost as much as the MCU ?

Statistics: Posted by MikeDB — Sun Jan 11, 2026 7:59 pm

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