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32bit version of the PCM1792A or DSD1792A

Antenna_Head
Genius 11395 points
Other Parts Discussed in Thread: PCM1795, PCM1792A, DSD1796, DSD1792A

Here's some customer feedback- please let me know if there is something on the roadmap that I should be aware of...

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One thing that we DESPERATELY need is a 32-bit DAC like the PCM1795 that puts out the full current of the PCM1792A.

I don't know what they were thinking when they applied the 32-bit technology to the second-tier products.

We need the 32-bit technology for the top-line stuff. And to make things worse, we use the "DSD" versions of the parts -- the DSD1792A and the DSD1796. If you could get us 32-bit versions of those parts, we would buy thousands per year. The way it is now, we need to start looking at other suppliers.

Maybe you can send a product road map so that we'll know what to expect.

Thanks for your help!

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  • Prodigy 50 points

    I agree, TI's 32-bit audio DAC should be based on PCM1792A.

    Yet, 32-bit analog signal is fiction only...

  • in reply to Seppo Nikkila
    Prodigy 20 points

    I agree as well.

    The S/N virtually eats up the extra 8 bits, but if using two DACs in monoaural mode, one could get a little closer.

    My guess is that the cool dudes behind the DACs are most likely working on something awesome right now.

    If not, I'd suggest that they make an 'easy enhancement' of the 1792 by making a dual monoaural mode - sharing the same silicon (perhaps also stripping out a few of the previous features, to make a more 'raw'-like DAC).

    Personally, I would prefer transmitting the samples directly over two serial lines clocked on one clock (a'la DSD), but just the raw samples, and as 32bit.

    Ofcourse, this wouldn't be interesting news for the people who have TWI and I2S style audio streams already. -But TWI is beginning to be a little slow to be usable; especially if you want to daisy-chain several channels..

    -Oh, and while we're making a new DAC; I'd also very much like to see a new ADC, which could sample at 384kHz; although... I do not know what I'm talking about; the faster sampling frequencies, the more work the guys will probably have to get rid of noise-problems.

    Ofcourse, my opinions is based on using it as an audio-DAC; it would ofcourse be possible to use it for other purposes. =)

    32-bit; yes please. 384kHz or 400kHz would be awesome, and I'll probably shut my mouth for half a year or more. ;)