Keithley S530 - RingRef

Section
3: Software Reference S530 Parametric Test Systems Frequency Analysis Option
Manual
3-6 S530-923-01 Rev. A / January 2014
ring_ref
Purpose: This algorithm detects the frequency that is closest to the specified reference, or target
frequency (see next figure). The span of the scan will be from 0.65 * target_freq to
1.35 * target_freq.
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
target_freq double
Target frequency that fundamental
frequency is expected to be
Outputs Type Description
Freq_fund
double
Measured fundamental frequency in
Hz
Amp_freak double Amplitude of the fundamental in dB
Figure 6: Detected peak and target sample