S-parameters for the analog channel plotted as dB vs. frequency. You can view the data as single ended or mixed mode. You can also view the through path (insertion loss), self path (return loss), and crosstalk.

The nodes are written in the format: S<output mode><input mode>(output port, input port), where the output and input modes are denoted by D for the differential mode and C for the common mode.

S-parameters for the analog channel plotted as real vs. imaginary. You can view them as single ended or mixed mode S-Parameters. You can also view the through path (insertion loss), self path (return loss), and crosstalk.

Time domain transmission (TDT) data for the analog channel. You can view them as either single ended or mixed mode. You can also view the through path (insertion loss), self path (return loss), and crosstalk.

The nodes are written in the format: T<output mode><input mode>(output port, input port), where the output and input modes are denoted by D for the differential mode and C for the common mode.

Time domain reflectometry (TDR) data for the analog channel. You can view the data as either single ended or mixed mode. You can also view the through path (insertion loss), self path (return loss), and crosstalk.

The nodes are written in the format: T<output mode><input mode>(output port, input port), where the output and input modes are denoted by D for the differential mode and C for the common mode.

Save the S-parameters for all channels combined to an external location. You can place multiple S-parameters on a schematic to combine them.

The difference between the channel loss at DC and the channel loss at a frequency equal to one half the symbol rate.

This parameter is widely used to measure the ease with which you can equalize a channel. As a rule of thumb, <15dB easy, 20dB is moderately challenging, and >25dB is very challenging. 30dB is the upper limit for most technologies, although equalization for higher loss channels has been demonstrated in select sample parts.

The loss is for the analog RX and TX channels.

Ratio of unequalized signal energy to the combined unequalized energy of all the crosstalk aggressors.

This parameter is a first order indicator of crosstalk problems. A signal to crosstalk ratio of more than 26 dB can be considered safe for a target BER of 10^-12, and a ratio of 30 dB can be considered safe in general. Lower ratios indicate that you need to analyze your system design.

Peak-to-peak deviation of the transmission path dB loss from a straight line, up to a frequency equal to one half the UI.

A large value indicates channel distortion in a channel whose time delay might be beyond the range of available equalizers. This parameter is important primarily for short low-loss channels, and a value of more than about 2 dB is cause for concern.

Unequalizable Energy from Network Analysis.

This parameter is defined as the amount of energy in the impulse response that cannot be equalized out assuming a transmitter with a four tap FFE and a receiver with a peaking filter and no DFE. This parameter can indicate resonance problems.

Time interval between the time when 1% of the impulse response energy has been observed and the time when 99% of the impulse response energy has been observed.

Set the maximum channel delay to a value greater than the sum of the impulse width and the path delay.

Channel loss of the channel at very low frequencies excluding the effects of AC coupling.

The loss is for the RX and TX channels.

Channel loss of the channel at a frequency equal to one half the symbol rate.

The loss is for the RX and TX channels.