3: Software Reference S530 Parametric Test Systems Frequency Analysis Option
3-2 S530-923-01 Rev. A / January 2014
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:
Inputs Type Description
vcc_pin int
Pin number of V
pin
vccb_pin int
Pin number of V
pin
vss_pin int
Pin number of V
pin
Pin number of signal output pin
Voltage of V
cc
vccb double
Voltage of V
ccb
stages int Number of stages (to the signal output)
min_freq double
Beginning frequency of the scan
spectrum
Ending frequency of the scan spectrum
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)
Size of output array (default = 5)
When using the ring_Icc algorithm, size must equal size 1.
Outputs Type Description
Calculated device delay time:
Measured current of pin V
cc
in amps
Measured current of pin V
ccb
in amps
Measured frequency array (sorted) in Hz
Amplitude of the associated frequency. If output is 0, it cannot find signal
stronger than min_level in dB