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| John Larkin... |
 Posted: Thu Nov 05, 2009 1:03 pm |
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| ChrisQ... |
| Posted: Thu Nov 05, 2009 1:07 pm |
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John Larkin wrote:
[quote]http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
[/quote]
Neat, though no data sheet and no indication as to whether it is
completely monotonic. Perhaps they don't need it for audio though...
Regards,
Chris |
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| Vladimir Vassilevsky... |
| Posted: Thu Nov 05, 2009 1:20 pm |
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John Larkin wrote:
[quote]http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
[/quote]
Huh? 32 bit interface is commonplace in the audio DAC/ADC.
The 120dB performance is decent yet this is inferior to the current
state of the art.
Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com |
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| Jim Thompson... |
| Posted: Thu Nov 05, 2009 1:26 pm |
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On Thu, 05 Nov 2009 10:03:21 -0800, John Larkin
<jjlarkin at (no spam) highNOTlandTHIStechnologyPART.com> wrote:
[quote]
http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
[/quote]
Does it have to be burned-in ?
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Obama says, "I AM NOT a cry baby, Fox REALLY IS out to get me!" |
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| Jan Panteltje... |
| Posted: Thu Nov 05, 2009 2:00 pm |
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On a sunny day (Thu, 05 Nov 2009 10:03:21 -0800) it happened John Larkin
<jjlarkin at (no spam) highNOTlandTHIStechnologyPART.com> wrote in
<vp46f5trc0u49n51dcqd67jbujie2ke977 at (no spam) 4ax.com>:
[quote]
http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
[/quote]
mm they have a 32 bit DAC too, prices at 98 cent for 10,000.
Just too lazy or sceptical to see, n owait, thsi is fun,
they claim 2 Vrms out, that makes 5.65 Vpp,
divided by 2^32 = 1.317 nV per step.
Yes nano nano nano, wonder how much noise is allowed on the supply,
or in a one kilomter (mile for the Yankees) radius? |
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| Dirk Bruere at NeoPax... |
| Posted: Thu Nov 05, 2009 4:31 pm |
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| MooseFET... |
| Posted: Thu Nov 05, 2009 4:38 pm |
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On Nov 5, 10:03 am, John Larkin
<jjlar... at (no spam) highNOTlandTHIStechnologyPART.com> wrote:
[quote]http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
[/quote]
Take a good 24 bitter and add 8 random bits on the bottom and you'd
likely do as well.
Assume 10V in.
10V/2^32 = 2.3nV
Whats the band width for audio?
Lets say 10KHz to make the math real easy
2.3nV / sqrt(10K) = 0.023nV.
Without even bringing in the sqrt(12) factor that usually shows up
about here, this looks like pure specsmanship. |
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| Phil Hobbs... |
| Posted: Thu Nov 05, 2009 5:37 pm |
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John Larkin wrote:
[quote]http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
[/quote]
You can get that today--just add a PRBS!
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net |
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| Frank Buss... |
| Posted: Thu Nov 05, 2009 7:31 pm |
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Vladimir Vassilevsky wrote:
[quote]Huh? 32 bit interface is commonplace in the audio DAC/ADC.
The 120dB performance is decent yet this is inferior to the current
state of the art.
[/quote]
Yes, there are some chips with 32 bit interfaces. But the webpage is a bit
misleading (I guess some marketing people wrote it because -120 dB THD
is 19.93 bits.
--
Frank Buss, fb at (no spam) frank-buss.de
http://www.frank-buss.de, http://www.it4-systems.de |
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| Vladimir Vassilevsky... |
| Posted: Thu Nov 05, 2009 10:27 pm |
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MooseFET wrote:
[quote]Take a good 24 bitter and add 8 random bits on the bottom and you'd
likely do as well.
[/quote]
They claim 120dB of pure THD, not SINAD. The 120dB THD figure probably
implies the signal level of no higher then -20dBFS, and they still
should have ~20 bits of resolution at this level. Your assertion about
24 bits looks right.
Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com |
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| Paul Keinanen... |
| Posted: Fri Nov 06, 2009 1:24 am |
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On Fri, 6 Nov 2009 01:31:18 +0100, Frank Buss <fb at (no spam) frank-buss.de>
wrote:
[quote]Vladimir Vassilevsky wrote:
Huh? 32 bit interface is commonplace in the audio DAC/ADC.
The 120dB performance is decent yet this is inferior to the current
state of the art.
Yes, there are some chips with 32 bit interfaces. But the webpage is a bit
misleading (I guess some marketing people wrote it because -120 dB THD
is 19.93 bits.
[/quote]
Just wondering how they have measured the THD.
At least with oversampled _audio_ DACs running at 192 kHz the THD is
usually measured only in the 0-20 kHz audio band.
Paul |
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| Robert Baer... |
| Posted: Fri Nov 06, 2009 4:52 am |
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John Larkin wrote:
[quote]http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
32 bite is too expensive; 64 bits only for the rich (Awk! Pieces of[/quote]
eight! Awk!). |
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| Dirk Bruere at NeoPax... |
| Posted: Fri Nov 06, 2009 11:10 am |
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| Phil Hobbs... |
| Posted: Fri Nov 06, 2009 12:37 pm |
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Dirk Bruere at NeoPax wrote:
[quote]Robert Baer wrote:
John Larkin wrote:
http://esstech.com/index.php?p=products_ADC
I guess 64 is next.
John
32 bite is too expensive; 64 bits only for the rich (Awk! Pieces of
eight! Awk!).
Pieces of 7 - parroty error.
[/quote]
rofl
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net |
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| Jamie... |
| Posted: Fri Nov 06, 2009 7:00 pm |
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Paul Keinanen wrote:
[quote]On Fri, 6 Nov 2009 01:31:18 +0100, Frank Buss <fb at (no spam) frank-buss.de
wrote:
Vladimir Vassilevsky wrote:
Huh? 32 bit interface is commonplace in the audio DAC/ADC.
The 120dB performance is decent yet this is inferior to the current
state of the art.
Yes, there are some chips with 32 bit interfaces. But the webpage is a bit
misleading (I guess some marketing people wrote it because -120 dB THD
is 19.93 bits.
Just wondering how they have measured the THD.
[/quote]
The same way they measured the quality in oxygen free
Monster speaker wire!
[quote]At least with oversampled _audio_ DACs running at 192 kHz the THD is
usually measured only in the 0-20 kHz audio band.
Paul
[/quote] |
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