Pete
Guest
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 Posted:
Fri Dec 31, 2004 4:16 pm Post subject:
AT89C51SND2C / AT83SND2C |
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Has anyone here got any experience with these chips? I'm looking into trying
to make a Compact Flash mp3 player using:-
1. AT89C51SND2C / AT83SND2C - Microcontroller with MP3 decoder, DAC and
amplifier, as well as compact flash interface and USB facility to update
firmware - http://www.atmel.com/dyn/products/product_card.asp?part_id=3527
2. Nokia 3310 Display (Philips PCD8544) - 84x48 B/W screen -
http://www.myplace.nu/mp3/nokialcd.htm
3. 5way Joystick -
http://www.jelu.se/shop/product_info.php?currency=EUR&products_id=93
4. LTC3429 - Boost Convertor -
http://www.linear.com/pc/productDetail.do?navId=H0,C1,C1003,C1042,P2346&action=viewall
However, I'm finding several problems. Firstly those microcontrollers seem
completely unavailable from any shops because they're completely new, also
they don't have a development kit yet. Another problem will be their
package, BGA100 and I can't seem to find any applicable adapters for this.
Any thoughts, comments, answers? Thanks in advance
Pete |
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Jeroen
Guest
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| Posted:
Sat Jan 01, 2005 6:41 am Post subject:
Re: AT89C51SND2C / AT83SND2C |
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"Pete" <competer_uk@yahoo.co.uk> wrote in message
news:cr3ceu$thb$1@news.freedom2surf.net...
on=viewall
| Quote: |
However, I'm finding several problems. Firstly those microcontrollers seem
completely unavailable from any shops because they're completely new, also
they don't have a development kit yet. Another problem will be their
package, BGA100 and I can't seem to find any applicable adapters for this.
Any thoughts, comments, answers? Thanks in advance
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Are you sure you want to make this? For not too much money you can buy a
complete mp3 player that's likely much smaller that what you can achieve, at
least not for the same money. It will save you a lot of hassle I think.
You can't really mount BGA's yourself, and you need a fine line multilayer
PCB (e.g. expensive) to even get it routed in a reasonable space. Getting
hold of these chips will be difficult, especially as a private person. And
they will be expensive.
Have you looked into the SND1? This one comes in a TQFP144 package I
believe, which is far easier to work with. I have a little player with this
chip and a development kit; though I don't have any experience with it, it's
collecting dust in a box.
The golden days of DIY MP3 players are gone I guess.
Jeroen |
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