User's Manual

Appendix D: Sample Waveforms
D-4 AWG710&AWG710B Arbitrary Waveform Generator User Manual
Table D-5: Squared sine pulse
File name SQU_SIN.WFM Made with equation editor
Equation
clock = 1e9
size = 412
“tmp1” = 0
size = 200
“tmp2” = (cos (2 * pi * (scale - 0.5)) + 1) / 2
“tmp3” = join (“tmp1”, “tmp2”)
“squ_sin.wfm” = join (“tmp3”, “tmp1”)
delete (“tmp1”)
delete (“tmp2”)
delete (“tmp3”)
Descriptions
Settings
Waveform points: 1024, Clock frequency: 1.0 GHz,
Output time: 412 ns
Table D-6: Double exponential pulse
File name D_EXP.WFM Made with equation editor
Equation
clock = 1e9
size = 10240
k1 = 50e-9 ’rise time constant
k2 = 1000e-9 ’fall time constant
“tmp” = exp (-time / k2) - exp (-time /k1)
“d_exp.efm” = norm (“tmp”)
delete (“tmp”)
Descriptions
This is the waveform when a charged capacitor is discharged to the
RC circuit. When the time constants for charging and discharging
are taken to be
τ
1
and τ
2
, respectively, the waveform can be
expressed by the following formula:
Settings
Waveform points: 10240, Clock frequency: 1.0 GHz,
Output time: 10240 ns
Vt()
t
τ
2
-----–


t
τ
1
-----–


exp–exp=