This is the beginning of vblank:
Here is an extreme close-up of one of the small pulses. It's hard to tell at the moment whether we should reduce the resistance of that pull-up.
Sunday, February 2, 2014
NAND gate speed with pull-up resistors?
In designing rev3, I noticed that we have 10k pull-up resistors on the NAND gate that is used to pass CSYNC to the PR-8210A interface. I decided to do a quick test to see how responsive this pass-thru was. I will want to do a more thorough test later.
This is the beginning of vblank:
Here is an extreme close-up of one of the small pulses. It's hard to tell at the moment whether we should reduce the resistance of that pull-up.
This is the beginning of vblank:
Here is an extreme close-up of one of the small pulses. It's hard to tell at the moment whether we should reduce the resistance of that pull-up.
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