Code: Select all
___________ ___________ ____
| | | | |
_| |___________| |___________|
Signal with amplitude 2 lines
__________ __________ ___
:/ \ :/ \ :/
_/ :\__________/ :\__________/
Limited to 1 line of rise per character of run
Carrier delayed by 1 character
___________ ___________ ____
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
_| |___________| |___________|
Signal with amplitude 6 lines
______ ______
: / \ : / \ :
: / :\ : / :\ : /
: / : \ : / : \ : /
: / : \ : / : \ : /
:/ : \ :/ : \ :/
_/ : \______/ : \______/
Limited to 1 line of rise per character of run
Carrier delayed by 3 characters
The asymmetry of NMOS increases this possibility for delay as well. An NMOS output driver can pull down faster than it can pull up. This tends to widen black vertical lines on white backgrounds, narrow white vertical lines on black backgrounds, and make delay at 3.58 MHz even greater.
Code: Select all
: ,'\ : ,'\ :
: ,' :\ : ,' :\ :
: ,' : \ : ,' : \ :
: ,' : \ : ,' : \ : ,
: ,' : \ : ,' : \ : ,'
_,' : \______,' : \______,'
Limited to rise rate 1/2, fall rate 1