[sdiy] DACs on-board 12 vs external 16 vs 24 bit

Neil Johnson neil.johnson71 at gmail.com
Tue Nov 12 18:29:20 CET 2013


AC spec looks reasonable.
In the UK (where the OP is based) they can be got from Farnell (order
code 2305663).
Although if price is important then I'd start with Wolfson, such as this one:

http://uk.farnell.com/wolfson-microelectronics/wm8524cgedt-r/dac-stereo-2vrms-2ch-16tssop/dp/1851539RL

Neil

On 12 November 2013 13:59, Paul Anderson <wackyvorlon at me.com> wrote:
> Also, looks like Analog Devices has a 24 bit DAC chip:
>
> http://www.analog.com/en/digital-to-analog-converters/audio-da-converters/ad1852/products/product.html
>
> Sent from my iPhone
>
> On Nov 12, 2013, at 8:32 AM, Neil Johnson <neil.johnson71 at gmail.com> wrote:
>
> cheater00 wrote:
>
>
> On 12 Nov 2013 12:39, "Neil Johnson" <neil.johnson71 at gmail.com> wrote:
>
>
> cheater00 wrote:
>
> I seriously doubt 24-bit D-A is within the reach of any synth
>
> designer. Or even 22-bit. Not even Yamaha would bother.
>
>
> SY55 has 22-bit DACs:
>
>
>
> http://usa.yamaha.com/products/music-production/synthesizers/sy55/?mode=model
>
>
> Do you believe it would measure as that? Yamaha is likely just following the
>
> arms race of bit depth with that number, rationalizing it with some BS
>
> reasons rather than real performance. Jackson's Thriller was recorded with
>
> less bit depth IIRC. Nice numbers are nice but disrwgard them if they're a
>
> selling point marketed towards people who cannot check them.
>
>
> It has a PCM56 linear 16-bit DAC plus a YM3029 floating point
> converter which scales the output of the DAC according to the exponent
> value.  So you do get something like 22 bit dynamic range but
> certainly not the same as a linear 22-bit converter.
>
> Neil
> --
> http://www.njohnson.co.uk
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