AVR32 destiny or destination (Ulf Samuelsson RSVP)
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From: rickman on 8 Jun 2010 11:57 On Jun 5, 8:17 pm, Andy <amd...(a)gmail.com> wrote: > On Jun 4, 6:01 pm, rickman <gnu...(a)gmail.com> wrote: > > > > > On Jun 4, 2:52 pm, Ulf Samuelsson <u...(a)invalid.atmel.com> wrote: > > > > rickman skrev 2010-06-04 02:13: > > > > > Ulf, > > > > > Once again, I don't find the Atmel web site easy to quickly get a feel > > > > for the capabilities of the parts so let me ask you. I see on the AVR > > > > Solutions page that a number of the AVR32 devices have a "Hi-Fi stereo > > > > Audio DAC", but I don't see any mention of a corresponding ADC. Is > > > > that missing from the AVR32 parts? If I can find an affordable MCU in > > > > the right package with a audio quality stereo CODEC, that would solve > > > > a problem of mine. Is the AVR32 the solution to this problem? > > > > > Rick > > > > Look for the AT32UC3A3xxx or UC3A4xxx if you want to do Audio. > > > The AT32UC2A0/A1xxx might also work > > > Thanks for the suggestion, but the 3A3 parts don't include an audio > > ADC and I can't find the AT32UC2A0 on your web site. Is that a > > correct number? The search function says, "Your search - AT32UC2A0 - > > did not match any documents" > > > Rick > > You might check out Freescale i.MX 233. It includes ADCs, stereo > audio out, ARM 926 core, available in a QFP (with reduced features > from the BGA), and fairly low cost. I haven't used it, but am > considering it for a product refresh in the future. Hi Andy, I took a look at the Freescale part and it is pretty interesting. They don't give any power consumption figures in the data sheet. Actually, they don't give a data sheet in their data sheet. They have a data sheet that says look in a different document... isn't that strange... Do you have any idea of the power consumption of this device? The size and price seem ok. It will need a flash device of some sort to boot from, but that's not a problem given that it integrates everything else. Rick
From: Andy on 8 Jun 2010 15:10 On Jun 8, 10:57 am, rickman <gnu...(a)gmail.com> wrote: > On Jun 5, 8:17 pm, Andy <amd...(a)gmail.com> wrote: > > On Jun 4, 6:01 pm, rickman <gnu...(a)gmail.com> wrote: > > You might check out Freescale i.MX 233. It includes ADCs, stereo > > audio out, ARM 926 core, available in a QFP (with reduced features > > from the BGA), and fairly low cost. I haven't used it, but am > > considering it for a product refresh in the future. > > Hi Andy, I took a look at the Freescale part and it is pretty > interesting. They don't give any power consumption figures in the > data sheet. Actually, they don't give a data sheet in their data > sheet. They have a data sheet that says look in a different > document... isn't that strange... > > Do you have any idea of the power consumption of this device? The > size and price seem ok. It will need a flash device of some sort to > boot from, but that's not a problem given that it integrates > everything else. The reference manual has most of the usual datasheet stuff. As for power consumption, it's hard to tell - they don't have a good app note or spreadsheet and it's one of those devices with power scaling and clock gating options all over the place. I'd guess it's probably well less than 1W. I was looking at it for integration and cost, not so much the power aspect.
From: rickman on 8 Jun 2010 23:22 On Jun 8, 3:10 pm, Andy <amd...(a)gmail.com> wrote: > On Jun 8, 10:57 am, rickman <gnu...(a)gmail.com> wrote: > > > > > On Jun 5, 8:17 pm, Andy <amd...(a)gmail.com> wrote: > > > On Jun 4, 6:01 pm, rickman <gnu...(a)gmail.com> wrote: > > > You might check out Freescale i.MX 233. It includes ADCs, stereo > > > audio out, ARM 926 core, available in a QFP (with reduced features > > > from the BGA), and fairly low cost. I haven't used it, but am > > > considering it for a product refresh in the future. > > > Hi Andy, I took a look at the Freescale part and it is pretty > > interesting. They don't give any power consumption figures in the > > data sheet. Actually, they don't give a data sheet in their data > > sheet. They have a data sheet that says look in a different > > document... isn't that strange... > > > Do you have any idea of the power consumption of this device? The > > size and price seem ok. It will need a flash device of some sort to > > boot from, but that's not a problem given that it integrates > > everything else. > > The reference manual has most of the usual datasheet stuff. As for > power consumption, it's hard to tell - they don't have a good app note > or spreadsheet and it's one of those devices with power scaling and > clock gating options all over the place. I'd guess it's probably well > less than 1W. I was looking at it for integration and cost, not so > much the power aspect. That is way outside of the power budget I think. Currently I am using about that much for the entire board including the 12 volt powered analog. This part would roughly double the power consumption. Thanks for the info. I'm always happy to look at new parts. This one has some real potential for a variety of apps I'm sure. Rick
From: -jg on 9 Jun 2010 00:42 On Jun 4, 12:13 pm, rickman <gnu...(a)gmail.com> wrote: > If I can find an affordable MCU in > the right package with a audio quality stereo CODEC, that would solve a problem of mine. Not sure what your 'audio quality' means, but I see freescale have just announced an upcoming coldfire+ in 90nm, with 16b adcs and 12b dacs, and a not so common spec on the DAC of 6 sigma across a band of codes (whatever that is supposed to mean ?!) They say prices start at 99c, but that's not going tobe the 16b ADC parts. one quirk is you cannot have USB and 16b ADC http://www10.edacafe.com/nbc/articles/view_article.php?section=ICNews&articleid=831640 -jg
From: rickman on 10 Jun 2010 11:05
On Jun 9, 12:42 am, -jg <jim.granvi...(a)gmail.com> wrote: > On Jun 4, 12:13 pm, rickman <gnu...(a)gmail.com> wrote: > > > If I can find an affordable MCU in > > the right package with a audio quality stereo CODEC, that would solve a problem of mine. > > Not sure what your 'audio quality' means, but I see freescale have > just announced an upcoming coldfire+ in 90nm, with 16b adcs and 12b > dacs, and a not so common spec on the DAC of 6 sigma across a band of > codes (whatever that is supposed to mean ?!) > > They say prices start at 99c, but that's not going tobe the 16b ADC > parts. > > one quirk is you cannot have USB and 16b ADC > > http://www10.edacafe.com/nbc/articles/view_article.php?section=ICNews.... > > -jg Sounds interesting enough, but it is only a single ADC. I need stereo ADCs and DACs. Also, they aren't planning production until middle of NEXT year! I am currently using a separate CODEC which is small and cheap, but if it were part of a processor that was not much larger, I get the processor for free (in terms of board space). TI and ADI both make signal processor chips like this, but they don't let you get to the nuts and bolts of the DSPs. You have to use their canned processing algorithms with their GUI. Otherwise they would be perfect! It seems like I can get as close as I want to what I need, but there is always something in the way... Rick |