MPS Eval. Board

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sled108

sled108

Member
Joined 2008
Well now, it looks like we might have something interesting to play with here....And, Avnet might them in DIP8...Mmmm
In fact, now I've checked, and they do have 38 in PDIP8....
Wow, go figure...Thru the hole....I can use these with my CMOY components.....While they last....
 

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theAnonymous1

theAnonymous1

Member
Joined 2004
sled108 said:
Well now, it looks like we might have something interesting to play with here....And, Avnet might them in DIP8...Mmmm
In fact, now I've checked, and they do have 38 in PDIP8....
Wow, go figure...Thru the hole....I can use these with my CMOY components.....While they last....
Click to expand...

For the price of two MPS7720 + shipping from AVNET you can have a complete working board from Sure Electronics.....

http://cgi.ebay.com/2-8W-8ohm-4ohm-...photoQQcmdZViewItemQQ_trksidZp1742.m153.l1262
 
D

dweekie

Member
Joined 2006
I have the Sure boards. They will take a little bit of work to sound good. It is single ended, and a conversion to BTL will take care of the output cap (which kills the sound quality), but it will also convert the board to a mono output. It has a little funny thing at the input where one channel is split into two, each with it's own cap and resistor, but one attaches to both chips at the PIN. I'm going to have to doublecheck this, though, since it was a quick glance through. If you read the 7731 datasheet, you'll get an idea of how this functions and the work needed to get the board to a BTL design. The Monolythic datasheets are some of the easiest datasheets to understand. They read like basic introductory textbooks. The Sure Tripath boards are easier to get started with than the MP7720 boards since it takes less work to get sounding good. Unfortunately, Sure does not supply a schematic for the MP7720 as they do with the Tripath boards.
 
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