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Hi-Rez Highway New high resolution SACD releases, players and technology. |
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Hi-Rez Highway New high resolution SACD releases, players and technology. |
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In Reply to: Can some one confirm what this web site said about ...... posted by akltam on January 22, 2004 at 05:20:09:
From the site: "963SA actually uses 3 clocks for audio:24.576Mhz for CD Upsampling (96Khz and 192Khz operations) in the analog board.
27Mhz thru MK2703 PLL IC for SACD and CD and DVD in the motherboard.
33.8688Mhz is only used for processing clock for 192Khz operation for AD1895A.
Why is the 33.8688Mhz clock not used for SACD and CD?Because AD1955 DAC has a problem with this master clock frequency for SACD and CD playback!!!!
Let’s just say that the engineers at Philips were told of this only at the last moment"
>> The 33.8688M IS USED for SACD and PCM and is also PLL-ed to the 27M video clock. Actually the 27M video clock is derived from the 33.8688M. Of course, the 33.8688M is divided by 2 so the actual DAC clock for normal PCM is 16,9344M.The 24,576M clock is used ONLY for upsampling and as a master clock for the 192K.
Regards,
Alex
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Follow Ups
- You are right..... - Alex Peychev 07:04:43 01/22/04 (11)
- Re: You are wrong. He is right. - Tze Guan 08:06:07 01/22/04 (10)
- What are you talking about?...... - Alex Peychev 08:33:52 01/22/04 (9)
- The 33.8688Mhz is used by Sample Rate converter AD1895 as processor clock to process 44.1Khz data to 192Khz. - Tze Guan 09:24:35 01/22/04 (7)
- Sorry, I really meant the SRC AD1895/96, not the DAC AD1955... - Alex Peychev 10:00:35 01/22/04 (6)
- You are wrong. Please read pg 22 of AD1895 data specs - Tze Guan 10:48:51 01/22/04 (5)
- question for your mod-friend - pipo 13:24:49 01/22/04 (0)
- No, you read pg 22 of the AD1895 or AD1896...... - Alex Peychev 11:53:13 01/22/04 (0)
- And you are just a customer? I doubt it now [nt] - Ted Smith 10:56:36 01/22/04 (2)
- You're right - a totally disingenuous shill. I wouldn't trust this individual, under either name. - Dalton 13:24:13 01/22/04 (0)
- Busted! [nt] - Djhymn 11:52:41 01/22/04 (0)
- Ain't all this tech talk grand? - Skeptic 09:06:51 01/22/04 (0)
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