Introduction; Output Operations; Sine Waveform - Keithley 3390 User Manual

Arbitrary waveform generator
Hide thumbs Also See for 3390:
Table of Contents

Advertisement

Section 5: Waveform Output Operations

Introduction

This section describes each of the Model 3390 waveform types, associated front-panel menu
options, and remote interface operations for each.
General parameters:
Frequency and amplitude limits exist: The instrument will automatically adjust frequency or
amplitude as necessary each time a new function is selected.
You can specify a high and low voltage level, or the amplitude and DC offset. For example,
if you set the high level to +2 volts
resulting amplitude will be 5 V peak-to-peak, with an offset voltage of -0.5 V.
The default output unit is volts peak-to-peak (Vpp), but you can also select V RMS or dBm.
The output unit cannot be set to dBm if the output termination is set to high impedance
(Hi-Z). Output amplitude limits can be affected by the output units selected.
The unit setting is stored in volatile memory during operation. The default unit (Vpp) will be
restored after a power up or a remote interface reset.
Figure 5-1:
Setting the high-voltage level
Figure 5-2:
Setting the low-voltage level
The output amplitude and DC offset values are constrained by the equation below:
V peak-to-peak
Where: Vmax is the maximum allowed peak voltage for the selected output termination (5 V
for a 50 Ω load, or 10 V for a high-impedance load). When the output termination setting is
changed, the output amplitude automatically adjusts.

Output operations

Sine waveform

A sine waveform is a uniform waveform with a constant frequency and amplitude.
To generate a sine waveform:
1.
The default waveform output of the Model 3390 is the sine waveform. If the current output
function is not sine, press the Sine key.
5-2
(Figure
2× ( Vmax - |Voffset| )
Return to
Section Topics
Model 3390 Arbitrary Waveform Generator User's Manual
5-1) and the low level to -3 volts
3390-900-01 Rev. C / January 2009
(Figure
5-2), the

Advertisement

Table of Contents
loading

Table of Contents