mystery dac

From: John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 10 Apr 2006 14:14:42 -0700

I'm trying to reverse-engineer, or at least understand, an old hunk of
military electronics, part of an aircraft heads-up display. One part
on the schematic seems to be a 12-bit DAC with internal data latches.
The part number seems to be DAC871 or possibly DAC671; it's a bad scan
of a bad Xerox. Heck, there's a chance it's a DAC571.

It looks like a 24-pin package with D0..D11 on pins 1..12
respectively, and D0 looks to be the MSB!

The board was designed by GEC Avionics Ltd, so the dac may be furrin.

No luck so far from the usual suspects. Anybody got any leads on what
this might be?

John

.

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Relevant Pages

Re: mystery dac
... military electronics, part of an aircraft heads-up display. ... on the schematic seems to be a 12-bit DAC with internal data latches. ... The board was designed by GEC Avionics Ltd, so the dac may be furrin. ...
(sci.electronics.design)
Re: mystery dac
... part of an aircraft heads-up display. ... on the schematic seems to be a 12-bit DAC with internal data latches. ... The board was designed by GEC Avionics Ltd, so the dac may be furrin. ...
(sci.electronics.design)