Subject: Re: [stella] TIA input pins 12 and 8 on PAL chips|
From: "Mark Graybill" <saundby@xxxxxxxxxxxx>
Date: Sun, 1 Dec 2002 21:36:24 -0800
I would expect that it uses a series of gates as a delay line for the phase changes. The delay of the gate would be a phase change equal to the part of the cycle time that the delay takes. The signal doesn't have to be a sine wave at output, a square wave that is phase-shifted would have the same effect.