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Model 3390 Noise waveform spectral density

Keithley 3390
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dfarrSDL
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Joined: July 11th, 2013, 10:48 am
Country: United States

Model 3390 Noise waveform spectral density

Post by dfarrSDL » July 11th, 2013, 11:02 am

I'm looking for a detailed specification of the power (or amplitude) spectral density of the 3390's noise waveform. I'm hoping to use it in an application which requires uniform power in the 100Hz-100kHz region. None of the documents I've found describe the spectrum of the noise waveform in detail; they just cite the bandwidth.

Dale C
Keithley Applications
Keithley Applications
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Joined: June 10th, 2010, 6:22 am
Country: United States
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Re: Model 3390 Noise waveform spectral density

Post by Dale C » September 24th, 2013, 11:43 am

I have not been able to find any such waveforms on the 3390.
I will check with engineering.

ashley

Re: Model 3390 Noise waveform spectral density

Post by ashley » September 12th, 2014, 4:11 am

I am trying to synchronize two Model 3390 function generators.................

Dale C
Keithley Applications
Keithley Applications
Posts: 2847
Joined: June 10th, 2010, 6:22 am
Country: United States
Contact:

Re: Model 3390 Noise waveform spectral density

Post by Dale C » September 12th, 2014, 6:25 am

Try this...
1. Connect the 10MHz output on one unit to the 10MHz input on the other unit(s).

2. Set all instruments to the same frequency.

3. Set the phase relationship between the instruments by

pressing UTILITY and selecting OUTPUT SET UP.

4. Then select Adj Phase.

Adjust the phase until you get the required phase between the units.

Use an oscilloscope to verify the phase relationship

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