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Appendix D: Sample Waveforms
D-4
AWG610 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 t1 and t2, respectively, the waveform can be expressed by
the following formula:
V(t) + exp
ǒ
–
t
t
2
Ǔ
–exp
ǒ
–
t
t
1
Ǔ
Settings Waveform points: 10240, Clock frequency: 1.0 GHz,
Output time: 10240 ns