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Joerg
Guest
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 Posted:
Mon Feb 07, 2005 4:22 am Post subject:
Re: What is exactly "System-on-chip"? |
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Hello Tim,
| Quote: | Whenever I've looked at the programmable analog stuff it's always
seemed to be lots of sizzle and not much steak at all. I wonder if
the stuff has actually made it into any products?
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I can only speak for med here but so far I have never seen any of these
in circuits. And I get to look at a few designs from other engineers
when called out for an EMC mitigation.
Another factor is cost. If something costs a Dollar or more it better
has a whole lot of 'steak' and not just 'sizzle'. It is amazing how
cheap a totally discrete design becomes once in mass production. A
Dollar buys dozens of parts including SMT machine time. For a little
over a dime we can buy an LM324. Contains four nice opamps and with its
input CM range including the negative rail it can do a whole lot of
chores in a single supply design. A typical run-of-the-mills BJT is two
cents or less, a nice FET four to five cents. Circuits with these run
circles around a lot of the 'modular approaches'.
A lot of times people say that this is old stuff. The manufacturers
clearly know better since they migrate these devices to TSSOP. Even ye
olde LM324.
Regards, Joerg
http://www.analogconsultants.com
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corlioni1976
Guest
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| Posted:
Mon Feb 07, 2005 4:34 pm Post subject:
Re: What is exactly "System-on-chip"? |
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"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> wrote in message
news:vjrc01tl1q7lf1u1dbb78ipj9kead25cgj@4ax.com...
| Quote: | On Sun, 06 Feb 2005 10:57:29 -0700, the renowned Jim Thompson
thegreatone@example.com> wrote:
On Sun, 06 Feb 2005 12:17:52 -0500, keith <krw@att.bizzzz> wrote:
On Sun, 06 Feb 2005 09:51:57 -0700, Jim Thompson wrote:
On 6 Feb 2005 08:33:48 -0800, Winfield Hill
hill_a@t_rowland-dotties-harvard-dot.s-edu> wrote:
GS wrote...
I know many embedded systems like Cellphones, gameboy and all. Each
embedded system contains a Microprocessor (ARM or motorols
processor)
and RAM, Flash ROM, DSP chip interface to main processor). But what
is
this System-on-chip?. How it will be used and where it will be
used?.
I think it has something to do with the kitchen sink.
Isn't that SOS, the cleaner, or S-O-S, the food ?:-)
Nah, SOS has been replaced by SOI. The second 'S' was too expensive.
In S-O-S, the second "S" stands for "shingle" ;-)
...Jim Thompson
http://www.8bitjoystick.com/archives/photos/Shit_on_a_shingle.jpg
Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers:
http://www.trexon.com
Embedded software/hardware/analog Info for designers:
http://www.speff.com |
What the hell was that pink stuff? |
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Spehro Pefhany
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keith
Guest
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| Posted:
Tue Feb 08, 2005 8:40 am Post subject:
Re: What is exactly "System-on-chip"? |
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On Sun, 06 Feb 2005 12:22:30 -0800, Paul Hovnanian P.E. wrote:
| Quote: | Winfield Hill wrote:
GS wrote...
I know many embedded systems like Cellphones, gameboy and all. Each
embedded system contains a Microprocessor (ARM or motorols processor)
and RAM, Flash ROM, DSP chip interface to main processor). But what is
this System-on-chip?. How it will be used and where it will be used?.
I think it has something to do with the kitchen sink.
CMOS gets clogged drains?
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Yes, and SOS is the source of the clogs.
--
Keith |
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