All-digital cross-channel coupling measurement
A method for determining mutual coupling between adjacent communication transmission lines is disclosed. The method includes providing a first periodic signal to a first communication transmit end of a first communication transmission line; providing a second periodic signal to a second communication transmit end of a second communication transmission line, wherein the first communication transmission line is adjacent to the second communication transmission line; measuring a time of zero-crossing at a second communication receive end of the second communication transmission line compared with a zero-crossing of an ideal reference signal; and determining a mutual coupling level based on the time of zero-crossing on the second communication transmission line compared with a zero-crossing of an ideal reference signal that was measured.
1. A method for determining mutual coupling between adjacent communication transmission lines, the method comprising:
providing a first periodic signal to a first communication transmit end of a first communication transmission line;
providing a second periodic signal to a second communication transmit end of a second communication transmission line, wherein the first communication transmission line is adjacent to the second communication transmission line;
measuring a time of zero-crossing at a second communication receive end of the second communication transmission line compared with a zero-crossing of an ideal reference signal; and
determining a mutual coupling level based on the time of zero-crossing on the second communication transmission line compared with the zero-crossing of the ideal reference signal that was measured.
2. The method of claim 1 , wherein the first communication transmission line is an aggressor line.
3. The method of claim 1 , wherein the second communication transmission line is a victim line.
4. The method of claim 1 , wherein the first periodic signal is a pseudo-random noise signal.
5. The method of claim 1 , wherein the first periodic signal is provided using a digital buffer.
6. The method of claim 1 , wherein the first communication transmission line is separated from the second communication transmission line by about 1 micron to about 1 millimeter.
7. The method of claim 1 , wherein the second periodic signal is a clock signal or a square wave.
8. A computer system comprising:
a hardware processor;
a non-transitory computer readable medium that stores instructions that when executed by the hardware processor perform a method for determining mutual coupling between adjacent communication transmission lines, the method comprising:
providing a first periodic signal to a first communication transmit end of a first communication transmission line;
providing a second periodic signal to a second communication transmit end of a second communication transmission line, wherein the first communication transmission line is adjacent to the second communication transmission line;
measuring a time of zero-crossing at a second communication receive end of the second communication transmission line compared with a zero-crossing of an ideal reference signal; and
determining a mutual coupling level based on the time of zero-crossing on the second communication transmission line compared with the zero-crossing of the ideal reference signal that was measured.
9. The computer system of claim 8 , wherein the first communication transmission line is an aggressor line.
10. The computer system of claim 8 , wherein the second communication transmission line is a victim line.
11. The computer system of claim 8 , wherein the first periodic signal is a pseudo-random noise signal.
12. The computer system of claim 8 , wherein the first periodic signal is provided using a digital buffer.
13. The computer system of claim 8 , wherein the first communication transmission line is separated from the second communication transmission line by about 1 micron to about 1 millimeter.
14. The computer system of claim 8 , wherein the second periodic signal is a clock signal or a square wave.
15. A non-transitory computer readable medium that stores instructions that when executed by a hardware processor perform a method for determining mutual coupling between adjacent communication transmission lines, the method comprising:
providing a first periodic signal to a first communication transmit end of a first communication transmission line;
providing a second periodic signal to a second communication transmit end of a second communication transmission line, wherein the first communication transmission line is adjacent to the second communication transmission line;
measuring a time of zero-crossing at a second communication receive end of the second communication transmission line compared with a zero-crossing of an ideal reference signal; and
determining a mutual coupling level based on the time of zero-crossing on the second communication transmission line compared with the zero-crossing of the ideal reference signal that was measured.
16. The non-transitory computer readable medium of claim 15 , wherein the first communication transmission line is an aggressor line.
17. The non-transitory computer readable medium of claim 15 , wherein the second communication transmission line is a victim line.
18. The non-transitory computer readable medium of claim 15 , wherein the first periodic signal is a pseudo-random noise signal.
19. The non-transitory computer readable medium of claim 15 , wherein the first periodic signal is provided using a digital buffer.
20. The non-transitory computer readable medium of claim 15 , wherein the first communication transmission line is separated from the second communication transmission line by about 1 micron to about 1 millimeter.