Cerrot, what matters is the jitter at the point where the data stream is converted to analog. Whether or not the data is packetized when it is transmitted from the source component to the component in which that conversion is performed has no necessary relation to that. And, assuming comparably good implementation of the two approaches, packetized transmission stands a good chance of being better in that respect.
To achieve minimal jitter at the point of D/A conversion the clock used at that point should be independent of the timing of the signal that is transmitted between components. Otherwise performance will be degraded by jitter in the signal provided by the source; by noise, reflections, and waveform degradation occurring in the interface; and by clock extraction circuitry at the receiving end.
Asynchronous processing of packetized data inherently avoids those issues, or at least greatly minimizes them, since the timing of D/A conversion is essentially independent of the timing of the packetized data. Whether or not it may have other issues, depending on the specific implementation, is of course another matter.
Regards,
-- Al
To achieve minimal jitter at the point of D/A conversion the clock used at that point should be independent of the timing of the signal that is transmitted between components. Otherwise performance will be degraded by jitter in the signal provided by the source; by noise, reflections, and waveform degradation occurring in the interface; and by clock extraction circuitry at the receiving end.
Asynchronous processing of packetized data inherently avoids those issues, or at least greatly minimizes them, since the timing of D/A conversion is essentially independent of the timing of the packetized data. Whether or not it may have other issues, depending on the specific implementation, is of course another matter.
Regards,
-- Al