Ring_Lcc - Keithley S530 Option Manual

Section 3: Software Reference

ring_lcc

Purpose: This algorithm detects frequencies of the top five amplitudes that are longer than a given
level (default 0.5 mV)(see next figure). Otherwise, zero will be the output if the amplitude
threshold is not met. The output frequencies are sorted in descending order of amplitude,
that is, from the highest amplitude to the lowest amplitude.
Parameters:
When using the ring_Icc algorithm, size must equal size 1.
Outputs
Tdelay
Icc
Iccb
Frequency double
amplitude
3-2
Inputs Type Description
vcc_pin int
Pin number of V
vccb_pin int
Pin number of V
vss_pin int
Pin number of V
out_pin int Pin number of signal output pin
vcc double
Voltage of V
vccb double
Voltage of V
stages int Number of stages (to the signal output)
Beginning frequency of the scan
min_freq double
spectrum
max_freq double Ending frequency of the scan spectrum
step_freq double Resolution (step frequency) of the scan
min_level double Minimum amplitude; the peak detected
must be higher than this level
size int Size of output array (default = 5)
size1 int Size of output array (default = 5)
Type Description
double Calculated device delay time:
double
Measured current of pin V
double
Measured current of pin V
Measured frequency array (sorted) in Hz
double Amplitude of the associated frequency. If output is 0, it cannot find signal
stronger than min_level in dB
S530 Parametric Test Systems Frequency Analysis Option Manual
pin
cc
pin
ccb
pin
ss
cc
ccb
in amps
cc
in amps
ccb
S530-923-01 Rev. A / January 2014