eye_amplitude()

Returns eye amplitude

Syntax
y = eye_amplitude(Vout_time, Delay, BitRate, SamplePoint, WindowPct)

Arguments

Name	Description	Range	Type	Required
Vout_time	time domain voltage waveform	(-∞, ∞)	complex	yes
Delay	used to remove initial transient in the eye diagram and is expressed in time units	[0, ∞)	real	yes
BitRate	bit rate of the channel and is expressed in frequency units	[0, ∞)	real	yes
SamplePoint	marker name placed on the eye diagram measurement. The independent value of this marker is used to determine the symbol offset.		string	yes
WindowPct	used to determine level '1' and level '0' of the time domain waveform and its typical value is 0.2.	[0, 1]	real	yes

Examples

Eye_amp = eye_amplitude(vout,12 ps,10 GHz, m1, 0.2)

Defined in

$HPEESOF_DIR/expressions/ael/DesignGuide_fun.ael

See Also

cross_hist(), eye(), eye_closure(), eye_fall_time(), eye_height(), eye_rise_time()

Notes/Equations

The eye_amplitude() function essentially takes the vertical histogram of the eye voltages and subtracts the "0" level mean from "1" level mean within a given measurement window.