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BF527 clocking

Question asked by Thamizh on Jan 31, 2011
Latest reply on Feb 7, 2011 by Prashant

Hi Support  Team,

 

I have few questions about the  clock derivations.

 

I am using BF527 based platform  with input clock 24.576MHZ.

 

I am planning to use the Blackfin  as a master for transmitting the audio data to the DAC AK4385.

 

I am using same  24.576MHz clock to the DAC also as a Master Clock.

 

In the above situation

 

1. Whether all the Clocks between  Blackfin and DAC (LRCLK, BCLK and MCLK) will be in  Sync?

 

2. Is there any phase shift and  delay between 24.576MHz, BCLK and LRCLK?

 

3.  Whether the derived clocks in  the Blackfin Processor (like SCLK, PPI Clock, SPORT Clock, SPI Clock, etc) will  be in sync with respect to Given Input Clock(Clock IN)? Is there any phase shift and delay  will be there?

 

4. Whether any document available  for Blackfin Clock derivation and Phase Shift, delay, etc..  calculation?

 

Regards,

Thamizh

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