"Unfortunately we have not specifically tested our products with the
Apple Cinema brand of monitors. As for the max resolution when making
DVI connections, 1600x1200 is the conservative number for the
advertised max resolution. However like every computer hardware device,
the optimal performance will depend on the compatible of each computer
devices working together as a whole."
DVI (and similar digital interfaces, or even analog types, for that
matter) really doesn't have a "max. resolution" (pixel format)
per se. The limiting factor is pretty much always the pixel rate,
and as long as you can put together a valid timing for a given format
which does not exceed the rate limit of the interface in question,
the interface will be happen. For instance, a format of, say,
200 pixels horizontally by 10,000 vertically at 60 Hz refresh may
be a silly thing to do, but since the pixel rate would probably come
in well under 150 MHz it wouldn't pose much of a problem for
most interfaces.
With respect to DVI specifically, the maximum pixel rate
permissible (in the single-pixel-per-clock mode) is 165 MHz;
this is sufficient to cover the VESA standard timing for
1600 x 1200 at 60 Hz (162.000 MHz pixel clock), even at
CRT-like blanking times. Reducing the blanking will increase
the active pixel count supportable quite a bit higher, of course.
However, whether or not a given implementation can actually
support the specified max. rate is not guaranteed; cable and
connector quality issues may limit the max. rate that can be
reliably used to something less than the spec. maximum.
Bob M.
