DAC80 Replacement

OK! OK! I'll stop with the geek talk! Now that I have caused everyone's eyes to
glaze over...

(Don't take that too seriously, my two partners in crime's eyes also glaze over
when I start talking vector generator theory. I can be a bit obsessive at
times. ;-)

---
As far as the DAC's are concerned, I've never looked for a replacement before,
but now that I have I ran across the DAC811 and DAC813 on TI's website (they
bought Burr Brown).  It looks like these DACs could replace the DAC80 on the
Cinematronics board.  The pinout is different (it has more pins), and some
resistor changes would need to be made on the Cine monitor to get the offsets
and gains right.  But at first glance it looks like one of these (if not both)
could be made to work as a DAC80 substitutes.  Each one has it's advantage and
disadvantages.  But by holding low the WR, LDAC, and NA, NB, NC, LMSB and LLSB
lines, the data lines are passed directly through to the DAC, making it act like
the DAC80.
I think either of these could be made to work (or at least one of them), as
either replacements for the DAC80 (with a daughter board, and some component
value changes on the Cine monitor board), or in a Cine->WG convertor board.
So Marc, do you have a schematic of the Cine->WG board?  I have some hand
written stuff I've reverse engineered, but I haven't seen a full schematic.
-Zonn
On Wed, 16 Oct 2002 19:38:45 +1000, "Marc Alexander" <marcwolf123@yahoo.com>
wrote:
>
>I really shouldn't be back into an OT post, sorry all :)
>I'm sure there's a setting in there somewhere to translate tech! :)
>
>Vector relation:
>    BabelFish
>       >Hitch Hikers Guide To The Galaxy
>           >Vector graphics used on HHGTTG display unit,
>            some of the most extensive and entertaining
>            vector graphics used in a show :)
>            http://www.bbc.co.uk/cult/hitchhikers/
>
>BTW if someone can supply a suitable DAC part number that
>will replace the old DAC80 (DAC1280?), I have already put myself down with
>Paul to do the schematics and pcb layout of a new adapter,
>and Paul will make the first prototype on veroboard and test it.
>(I can hear Paul groaning now ;) )
>
>Can anyone with extensive vec gen knowledge (Zonn? :) ) pick
>a suitable DAC that could go in to replace the DAC80 (DAC1280)
>listed on the old Cine>WG circuit?
>Let me know if you need the old Cine>WG circuit pdf file.
>
>(IMO, US$11 is not so bad for low qty's of a 12 bit DAC)
>
>Cheers,
>
>Marc
>
>
>One of my favourite quotes:
>
>Arthur Dent looks up "Earth" in the Hitchhiker's Guide
>Arthur Dent: What's it say? "Harmless." Just one word? *Harmless?*
>
>Announcer: Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the galaxy lies a small,
>unregarded yellow sun. Orbiting this at a distance of roughly 92 million miles is an utterly insignificant little blue-green planet
>whose ape-descended life forms are so amazingly primitive that they still think digital watches are a really neat idea.
>
>
>----- Original Message -----
>From: "Paul Sommers" <rgvac_macman@froggy.com.au>
>To: <vectorlist@synthcom.com>
>Sent: Wednesday, October 16, 2002 6:53 PM
>Subject: Re: VECTOR: FA: GO8 XY monitor bench tested...
>
>
>> Cool!
>>
>> Does this work on tech speak so I can cut and paste Zonn and Rodgers
>> mails and translate them so I can build the Cinematronics adapter
>> cheaper????
>>
>> ;-)
>>
>> Cheers
>> MacMan
>>
>>
>> On Wednesday, October 16, 2002, at 06:28 PM, Marc Alexander wrote:
>>
>> >
>> > http://babelfish.altavista.com/tr
>> >
>> > It's great. Word your email clearly with common english words
>> > before translating,
>> > and be sure that the German seller actually is willing to ship to
>> > you before bidding.
>> > You can also translate auction pages or text by cut and paste
>> > or hyperlink.
>> >
>> > Cheers,
>> >
>> > Marc
>> >
>> > ----- Original Message -----
>> > From: "Chris Toseland" <chris.toseland@raxcosoftware.com>
>> > To: <vectorlist@synthcom.com>
>> > Sent: Wednesday, October 16, 2002 6:09 PM
>> > Subject: RE: VECTOR: FA: GO8 XY monitor bench tested...
>> >
>> >
>> >> Wish my german was good enough to risk bidding on ebay.de
>> >>
>> >> Chris
>> >>
>> >> -----Original Message-----
>> >> From: peter jones [mailto:highwayman2000@mail.ru]
>> >> Sent: 16 October 2002 08:47
>> >> To: vectorlist@synthcom.com
>> >> Subject: Re: VECTOR: FA: GO8 XY monitor bench tested...
>> >>
>> >>
>> >> like was said, it's the shipping that restricts the bids.
>> >>
>> >> i was thinking about biding until i realized the cost of shipping
>> >> would be
>> >> hundreds!
>> >>
>> >>
>> >> just 1 thing though, treat the winner with respect.
>> >>
>> >> i am currently trying to track a seller who is ignoring my posts
>> >> because he
>> >> didnt get much for the goods, it's not my fault he did not set a
>> >> minimum.
>> >>
>> >> just because i won 5 electronic coin-mechs for 1Euro (99cents) he he.
>> >> (the guy just dont realize that i actually bid 30Euro's)
>> >> http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=721138441
>> >>
>> >> c.u.
>> >
>> >
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>>
>
>
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