GARTHWILSON wrote:
The 16-pin MAX3100 SPI UART can be used for IrDA as well, if that interests you.
It definitely does. Thanks for the heads up!
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My purpose was to keep the cost and complexity of devices down by eliminating the need for their own power supply (or even batteries) for the ones that take a small enough amount of power that the controller would hardly notice the load.
Definitely. But I wonder how much a ribbon cable will be able to provide.
A MAX765 can provide a -12V regulated supply given a 12V input, at what appears to be 250mA output current. That translates to 3W of power. I'm assuming that there is a similar MAXIM chip that provides a +12V regulated supply also at 250mA; that's a total of 6W of power. Will ribbon cable be able to deal with that kind of power?
Also, the price of a MAX765 appears to be $6 or so for an 8-pin SOIC.
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I addressed this on my workbench computer's data converters where I don't even have a ground plane, let alone one with a chainsaw line.
I Google'd for this term ("chainsaw line") in various forms, but was unsuccessful in finding what it means. What is a chainsaw line in this case?
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It can be done, although a novice probably won't get it right, which is a consideration.
Sounds like another 6502.org article about to appear. ;D
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What I might have to do is add a separate power connector, like disc drives have. I just thought it would be a cleaner setup to have it all in one connector.
Yup, I agree; I would prefer to keep things simple on one cable too. I just want to make sure it won't break the bank for us home-brewers, and that things are kept so easy to build that you'd have to work harder to explicitly break the standard instead of conform to it. (If that makes any sense...)