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Hello team,
For the power-on reset timing diagram in PCM1864-Q1 datasheet,
-. Could you please explain what the “REF Fast Boot” means?
-. At the actual measurement below, the VREF’s behavior seems different from the REF in Figure26. Are the two(VREF, REF) different?
Thanks,
Sam Lee
it looks from the diagram that after 16 clocks and 2ms the Vref should be stable.Can you zoom in to check the time duration between VREF and LDO Waveforms?
Hi Sanjay,
I got the zoom in waveform. Would you please check its?
FYI - In previous waveform, the names of LDO and VREF were revsered. It's fixed here.
Best Regards,
Sam Lee
It looks that Vref is stable after 2ms of application of power. This is fine
Hi Sanjay,
Thank you for confirming it.
So, back to my original question, the REF of “REF Fast Boost" in Figure 69 is an internal signal rather than a direct VREF voltage, right?
Best Regards,
Sam Lee