Section 3: Software Reference
S530 Parametric Test Systems Frequency Analysis Option Manual
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
cc
pin
vccb_pin
int
Pin number of V
ccb
pin
vss_pin
int
Pin number of V
ss
pin
out_pin
int
Pin number of signal output pin
vcc
double 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
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)
When using the
ring_Icc
algorithm,
size
must equal
size 1
.
Outputs
Type
Description
Tdelay
double Calculated device delay time:
Icc
double Measured current of pin V
cc
in amps
Iccb
double Measured current of pin V
ccb
in amps
Frequency double Measured frequency array (sorted) in Hz
amplitude double Amplitude of the associated frequency. If output is 0, it cannot find signal
stronger than min_level in dB
