Hi
The aud_ws_in signal in SDI audio extractor is used as a reference word select signal to align the serial outputs of multiple audio extractors.
(please see SDI use guide for the original description).
So, I expect to see aligned serial audio data if I connect a clock of 48KHz to the aud_ws_in of several audio extractors.
(My bit clock for the audio is 3.072MHz)
However, when I really do this, I don't think I have seen seen aligned serial audio data from signaltapII. Please see the attached siganltapII waveform.
The embedded audio data in SDI are all 1KHz tone from a test pattern generator. So their serial data should be the same. All I need is to align data between multiple audio extractors. Should I add FIFO to do this?
Does anyone have some suggestions about my question? Thanks.
The aud_ws_in signal in SDI audio extractor is used as a reference word select signal to align the serial outputs of multiple audio extractors.
(please see SDI use guide for the original description).
So, I expect to see aligned serial audio data if I connect a clock of 48KHz to the aud_ws_in of several audio extractors.
(My bit clock for the audio is 3.072MHz)
However, when I really do this, I don't think I have seen seen aligned serial audio data from signaltapII. Please see the attached siganltapII waveform.
The embedded audio data in SDI are all 1KHz tone from a test pattern generator. So their serial data should be the same. All I need is to align data between multiple audio extractors. Should I add FIFO to do this?
Does anyone have some suggestions about my question? Thanks.