16 Dec
2007
16 Dec
'07
11:36 p.m.
RIght. But it would be plenty big for registers, say. Those delay
lines have 4.5MHz bandwidth (I think...), so they ought to be able to
handle a short series of pulses; 16 bits should be easy, and 32 might
work, too. An analog guru could probably squeeze more in 64us.
-Bobby
...
The delay line I was sgggesting for use as a computer memory
device is a
glass block wioth untrasonic transducers on it.
It's got a delay
period
of almost one complete line-time, and is used to
store one of the
chromanace signals as part of the PAL decoding process.
I don't know about PAL but one line for NTSC is only 63us and thats
not enough delay.
Computers that used delay lines were in the milliseconds range as they
needed to store a lot of bits/digit/words.
Allison