Post History
In protocol I2S we have 4 signal: 1.data 2.lrck/fck (frame synchronizer) 3.bck (bit clock) 4.mck/sck (master clock) Not really. IIS really only has 3 signals: bit data, bit clock, and left/right ...
Answer
#1: Initial revision
by
Olin Lathrop
·
2023-03-30T16:49:50Z (about 1 year ago)
<blockquote>In protocol I2S we have 4 signal: 1.data 2.lrck/fck (frame synchronizer) 3.bck (bit clock) 4.mck/sck (master clock)</blockquote> Not really. IIS really only has 3 signals: bit data, bit clock, and left/right indication. Take a look at the actual IIS protocol from NXP. Some implementations do use a "master clock". This is sometimes the l/r signal divided by 256 or somesuch. If used, it tends to be for higher level synchronization. It looks like your D/A expects plain IIS, and doesn't connect to any master clock if there is one.