I would not explain like just good bass and that is all... Rather solid, and very good connected with mids and the rest. Somehow from the HF side I can say the same? Probably it is the reason for that double speed of 12Mb/sec compared to TDA1541A, 6Mb/sec? I don't know.
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And it is possible to achieve 16bit result, but with 4 TDA1540 dac, but with no simple paralleling chips. The routing what number of 4 units will get depending on 15 and 16 bit. And changing 13 and 14 bit values... If the rest when dividing the 16 bit word by 4
1, 2, or 3... All 4 dac will get the same input information onlu when the result is without residual value. It is not easy to acheive with glue logic, even with programming some CPLD
Maybe You can give some input on this? 🙂
Philips claimed resolution equal to a 16bit converter with the TDA1540s by using oversampling - this topic was discussed often, but I don't understand how this idea really works. Maybe they meant 14bit 8x OS is equal to 16bit NOS or something like that...? BTW how did you like the sound of TDA1540 in comparison to TDA1541? I own 2 early CD players, a CD303 and a CD304MK2, they are similar, but the 303 sounds so much better. The 303 has TDA1540, the 304MK2 has TDA1541 with SAA7220...
Another example is the DENON DCD-1610 (DCD-1520 in Europe) I used to own: it uses PCM64P but claims 20bit resolution. They added 2 bits by some discrete circuit iirc. This player sounds very good.
Another example is the DENON DCD-1610 (DCD-1520 in Europe) I used to own: it uses PCM64P but claims 20bit resolution. They added 2 bits by some discrete circuit iirc. This player sounds very good.
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I think that DIY folks already making this dac for years. In NOS mode. This Card for I2S to Time Simultaneous format working good. It can be used With Philips SAA7030 oversamplihg filter, OR override this IC (and additional 12V supply nedded by SAA).That bass is something different, I have not heard before and I am glad that Zoran experienced the same... soon the whole DIY community will have the opportunity to try it
It is working also with 16bit word for TDA1541A. I tested all this before the card was available comercial sites, plus 384KHz SR from player TDA1540 accepting in NOS mode without any issue. I can recommend this card...
But somehow it is not available in audiophonics?
I found some links to show the inteface.
https://www.aliexpress.com/i/4001187133080.html
https://www.newegg.com/p/2S7-07JP-15MR4
http://www.cdream5.com/htm/saa7220_TDA1540_mk.htm
...
And this one long time present, nobody was interested...
https://www.ebay.fr/itm/32525271437...MnQnzHM8vNCXk6g8QSRmwM7A==|tkp:Bk9SR_bylPKSYQ
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At Ebay vas one more plate for same purpose designed by some geman seller
somehow not there any more...
Chiurutu is a DIYA member here. He has a few interesting boards available including an R2R dac. Check the Italian eBay site for takko_italia.
@Zoran Is not his design similiar to this? 🤣
https://www.diyaudio.com/community/...et-binary-no-cpld-no-fpga.341478/post-6579352
... but it does not have stop-clock, that is why I created new version ...
https://www.diyaudio.com/community/...et-binary-no-cpld-no-fpga.341478/post-6579352
... but it does not have stop-clock, that is why I created new version ...
look like not a good solder ...buy a better ones and clean the pbc
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look apaque ..maybe to much time ? use 63/37 eutectic kester/multicore , the ones on diyastore is good ,will help a bit
Is bit depth oversampling dependant ????
FWIW, have found the tda1540 in the Marantz cd player with the later Philips 304mkII, to be more articulate and darker, analog sound some sort but not better bass, though not a fair comparaison as the philips cd mechanism were not the same, as the ops. I found it also too much dry, but should be fixable with the passive parts and power supply work. Also the TDA1540 has somewhat stange thing : it is dry without sibilance in the highs... not a common thing.
Now not sure it beats the TDA1541A... there is curiosity though 😉
FWIW, have found the tda1540 in the Marantz cd player with the later Philips 304mkII, to be more articulate and darker, analog sound some sort but not better bass, though not a fair comparaison as the philips cd mechanism were not the same, as the ops. I found it also too much dry, but should be fixable with the passive parts and power supply work. Also the TDA1540 has somewhat stange thing : it is dry without sibilance in the highs... not a common thing.
Now not sure it beats the TDA1541A... there is curiosity though 😉
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@jpk73 It is achieved again using digital filters 
Here it is described into more details:
https://www.dutchaudioclassics.nl/Philips-TDA1540-16bit-da-conversion/
well, TDA1540 vs TDA1541 battle ... DAC Schedule 2023 🤣 🤣
Here it is described into more details:https://www.dutchaudioclassics.nl/Philips-TDA1540-16bit-da-conversion/
well, TDA1540 vs TDA1541 battle ... DAC Schedule 2023 🤣 🤣
@jpk73 It is achieved again using digital filters
https://www.dutchaudioclassics.nl/Philips-TDA1540-16bit-da-conversion/
well, TDA1540 vs TDA1541 battle ... DAC Schedule 2023 🤣 🤣
It explains that with 14bit DACs and oversampling a dynamic range equal to or greater than 16bit is achieved, but does this really mean that the 97dB contain the same resolution of voltage levels...? Dynamic range isn't the same as resolution, right...?
Seems like that, + noise shaper ... in my opinion this digital "calculator" only quesses the missing bits. It can hit accurate for simple sine-waves (and this is what is measured and showed by engineers), but for complicating things (like audio patterns) it is like a forecast of price in the markets ... it's a pity that these prices are not like sine, everyone would be a millionaire 🤣
