Keithley 3940 Service Manual page 49

Multifunction synthesizer
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ELECTRICAL SPECIFICATIONS (CONT.)
Preset
Sets the parameters listed below.
The modification step size is fl. The underline indicates the cursor position.
Main Synthesizer
Frequency
Amplitude
DC offset
Waveform
Oscillation mode
1.0000000kHz ~.00000ms)
lQ.OmVp-p/open
(;154mVrms/open, -@.OdBV/no load, -4ZOdBm/50D)
Q.OOmV/open
Q
CONT
For sweep
Start frequency
Stop frequency
Center frequency
Frequency span
Marker frequency
Sweep time
Sweep function
~0000000kHz (1.Qo000ms)
lQ.OOOOOOOkHz
~OO.OO).ts~
~.5000000kHz U81.818/lss)
~.oooooo0kHz gJl.lllpss)
~.ooo0000kH!a @lo.000ps~
1.000s
LlNn
For trigger
Trigger source
Stop level
Mark wave cycle
Space wave cycle
Phase
ml!
HOLD
1.0 cycle
1.0 cycle
Q.0 deg
Sub Synthesizer
Frequency
Amplitude
Waveform
Phase
~.0000000kHz u.oooooms)
l.QVp-p/open (O.~Vrms/open, -89dBV/open)
f-b
Q.0 deg
Others
n Duty cycle
50.0%
n duty
cycle 5096
fixed/variable
fixed
Beep sound
ON
Display
Main parameter display of main synthesizer

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