In Reply to: By the way... posted by Charles Hansen on January 7, 2008 at 09:50:51:
I think we have already established that the data is getting read from the disc well enough, so it seems like maintaining much better isolation between the clock and the "dirty" digital section that is presently corrupting it with jitter components would be a more cost effective approach. Of course, that would mean using D/A convertors without built-in digital filters since you want the DAC chips in the clean section, and would necessitate re-syncing the data to the new word and bit clocks generated on the clean side.Just a thought. I've done it in DACs using BB ISO150 type high speed digital couplers to good effect, only bringing the data across the barrier to the clean side. Much easier in a CDP since you have a fixed crystal and don't have to worry about synchronization.
Gets a lot more complex (as I know you've addressed in your company's products) when designing multi-format players.
Edits: 01/07/08 01/07/08
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Follow Ups
- Couldn't you also just improve jitter immunity? - Slider 10:16:08 01/07/08 (15)
- Not as far as the VRDS is concerned... - Sordidman 19:37:45 01/07/08 (13)
- How many data errors have you seen with a normal transport? - Slider 22:07:51 01/07/08 (12)
- Someone else can better explain if it's less wobble.. or.. - Sordidman 11:36:17 01/08/08 (11)
- Nobody knows why - Charles Hansen 12:10:22 01/08/08 (10)
- Apparently TEAC does :) - Slider 12:13:10 01/10/08 (1)
- RE: Apparently TEAC does :) - Charles Hansen 20:04:14 01/10/08 (0)
- RE: Nobody knows why - chris.redmond2@bushinternet.com 13:22:22 01/08/08 (7)
- RE: Nobody knows why - Charles Hansen 19:55:59 01/08/08 (6)
- RE: Nobody knows why - chris.redmond2@bushinternet.com 09:44:46 01/09/08 (5)
- RE: Nobody knows why - Charles Hansen 17:41:10 01/09/08 (3)
- RE: Nobody knows why - chris.redmond2@bushinternet.com 10:19:14 01/11/08 (2)
- RE: Nobody knows why - Charles Hansen 21:07:36 01/11/08 (1)
- RE: Nobody knows why - Alex Peychev 09:16:04 01/12/08 (0)
- RE: Nobody knows why - Ted Smith 13:04:48 01/09/08 (0)
- or extract all the data to RAM and play it from there? (nt) - 13th Duke of Wymbourne 13:37:02 01/07/08 (0)