打算直接用树莓派B+接QA100，但是树莓派的I2S没有MCLK，请问可以不接MCLK吗？
参考：http://www.tjaekel.com/T-DAC/files/RPi-Bplus_guideline.pdf
查了2篇资料，MCLK貌似不是必须的：
https://en.wikipedia.org/wiki/I%C2%B2S
The bus consists of at least three lines:
Bit clock line
Word clock line - also called word select (WS) or left right clock (LRCLK)
At least one multiplexed data line
It may also include the following lines:
Master clock (typical 256 x LRCLK)
A multiplexed data line for upload
http://www.planetanalog.com/document.asp?doc_id=528195
Typically, DSPs don't require an audio master clock
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Post By：2015-1-15 1:11:41 [只看该作者]
