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Part Number: PCM9211
Customer found that latest (rev B) data sheet of PCM9211 add the
eARC compatibility feature.
Also we can see white paper as following
Here is the question from customer.
What is the background you add the 'eARC' description?
It seems Electrical characteristics is not changed.
Is following understanding correct?
* PCM9211 can receive eARC from x 2 coax input. ( If more than x 2 input, multiple PCM9211 is necessary)
* PCM9211 receive x2ch eARC when it were PCM data,then decode it to I2S data by DIR.
* PCM9211 can not decode compressed audio of HDMI2.1signal( like as dts:X ) to I2S.
What is your recommended device which decode HDMI2.1 eARC signal ?
( My understanding is PCM9211 can not decode dt:X, but when it were 2 channel PCM, can decode from PCM to I2S)
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In reply to Ravi Patil:
Dear Ravi san
Thank you for your answer so quickly !!!
Please let me confirm because my customer had a question.
Can PCM9211 handle HDMI2.1 eARC signal which is differential + common signal?
We see PCM9211 can handle ARC which is single ended and PCM9211 DIR input is 0.15Vpp(min) in the latest data sheet.
My customer says single end ARC swing level Min 0.2Vpp is
for HDMI Specification Version 1.4b.
(P378 HEAC Table2-15“Minimum input (peak-to-peak)：See IEC 60958-1”)
My customer also says eARC signal is differential+common,
which is in HDMI Specification Version 2.1 P295 220.127.116.11 Audio Transport and Data Communications.
Would you please advise ?
In reply to KANJI SHIBATANI:
PCM9211 can only support Single-ended inputs and as a result, it cannot support differential eARC signal. Hence PCM9211 can handle ARC signal which are SE and will not be able to handle eARC differential signals.
Thank you for your answer!
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