PCM1796 or DSD1796

macboy · 26th January 2004, 03:42 PM

Has anyone tried the new TI/Burr-Brown PCM1796 or DSD1796 yet? They are listed as pin- and mode-compatible with the venerable PCM/DSD1792, but are about half the price. They are so new that my favorite parts source, Digi-key does not even list the part number yet, but my samps arrived today. If they perform well, I may replace the analog stage in my SACD player (Sony SCD-CE775) with a new one based these, something I wouldn't have done using the DSD1792 because of the cost. (The SACD player currently uses DSD1702 PCM/DSD DAC with integrated I/V followed by NJM2114 op-amps).

macboy · 26th January 2004, 09:54 PM

OK, so nobody here has used this DAC yet.
Does anyone have an opinion based on its specs, as to whether or not it is worth my time and effort?

Petter · 26th January 2004, 10:33 PM

For only a few dollars, the same form factor (and trouble), why bother with the part which gives 10dB less dynamic range? After all, my AD1853 gives similar specifications and it is 8 or so years old. Your cost arguement does not cut it as the cost of the unit will be only a small portion of total costs unless you are really nifty with your hands (really small wires instead of professional PCB). There is of course the aprilog converters but hey converters are relatively cheap ...

By the way, the PCM1794 is much easier to implement unless you are a programmer.

Petter

Bas Horneman · 26th May 2004, 09:29 PM

K&K audio are bringing out a DAC based on the PCM1794 soon!

They absolutely rave about it! Pricing to be announced soon...

So to answer your question....it is apparently very much worth it to try something with that chip!

Regards,
Bas

http://www.audioasylum.com/forums/Ka...ages/2063.html

26th January 2004, 03:42 PM	#1
macboy diyAudio Member Join Date: Oct 2003 Location: Ottawa, Canada	PCM1796 or DSD1796 Has anyone tried the new TI/Burr-Brown PCM1796 or DSD1796 yet? They are listed as pin- and mode-compatible with the venerable PCM/DSD1792, but are about half the price. They are so new that my favorite parts source, Digi-key does not even list the part number yet, but my samps arrived today. If they perform well, I may replace the analog stage in my SACD player (Sony SCD-CE775) with a new one based these, something I wouldn't have done using the DSD1792 because of the cost. (The SACD player currently uses DSD1702 PCM/DSD DAC with integrated I/V followed by NJM2114 op-amps).

26th May 2004, 09:29 PM	#4
Bas Horneman diyAudio Moderator Emeritus Join Date: Apr 2002 Location: The Netherlands Blog Entries: 18	K&K audio are bringing out a DAC based on the PCM1794 soon! They absolutely rave about it! Pricing to be announced soon... So to answer your question....it is apparently very much worth it to try something with that chip! Regards, Bas http://www.audioasylum.com/forums/Ka...ages/2063.html __________________ Boatanchor amps forum My "adventures" in audio

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26th January 2004, 09:54 PM	#2
macboy diyAudio Member Join Date: Oct 2003 Location: Ottawa, Canada	OK, so nobody here has used this DAC yet. Does anyone have an opinion based on its specs, as to whether or not it is worth my time and effort?

26th January 2004, 10:33 PM	#3
Petter diyAudio Member Join Date: Jan 2001 Location: Scandinavia	For only a few dollars, the same form factor (and trouble), why bother with the part which gives 10dB less dynamic range? After all, my AD1853 gives similar specifications and it is 8 or so years old. Your cost arguement does not cut it as the cost of the unit will be only a small portion of total costs unless you are really nifty with your hands (really small wires instead of professional PCB). There is of course the aprilog converters but hey converters are relatively cheap ... By the way, the PCM1794 is much easier to implement unless you are a programmer. Petter