User Manual

RIGOL
© 2006 RIGOL Technologies, Inc.
User’s Guide for DG3000 Series
4-12
Duty Cycle upper/lower limit = **
In the Square mode, different frequency range corresponds to different Duty Cycle
limit.
For a frequency less than 25MHz, the range is 20% to 80%;
For a frequency between 25~50MHz, the range is 40% to 60%;
For a frequency greater than 50MHz, the Duty Cycle is set 50%.
Symmetry upper limit = 100.0%
In the Ramp mode, the Symmetry upper limit is 100%. If the specified symmetry is
greater than 100%, the system will adjust the symmetry to 100% automatically.
Symmetry lower negative limit = 0.0%
In the Ramp mode, the Symmetry lower limit is 0.0%. If the specified symmetry is
less than 0.0%, the system will adjust the symmetry to 0.0% automatically.
Pulse Width is limited by Period
The Pulse Width should be less than the difference of the period and the Edge Time.
Pulse Width< period - 1.6×Edge Time.
Edge Time is limited by Period
The specified Edge Time should be in the specified period. The generator will adjust
the Edge Time to meet the need of the period. Edge Time < 0.625×Pulse Width.
Pulse width lower limit = 10us
In the Pulse mode, the Pulse width lower limit is 10us. If the specified pulse width is
less than 10us, the system will adjust the pulse width to10us automatically.
Edge Time lower limit = 5ns
In the Pulse mode, the Edge Time lower limit is 5ns. If the specified Edge Time is less
than 5ns, the system will adjust the Edge Time to 5ns automatically.
Offset upper limit= **
Different mode has different Offset upper limit; Offset upper limit may vary in the
same mode if the load is different.
Offset lower negative limit = **
Different mode has different Offset lower limit; Offset lower limit may vary in the
same mode if the load is different.
Initial # of points upper limit = 524,288
The number of initial points upper limit is 524,288. If the specified waveform has
more than 524,288points, the system will adjust the point number to 524,288
automatically.
Deviation cannot exceed Carrier Frequency
Carrier Frequency should always be greater than or equal to the deviation frequency.
Frequency Deviation lower limit = 1uHz
Frequency deviation lower limit is 1uHz. If the specified Frequency deviation is less
than 1uHz, the system will adjust the Frequency deviation to 1uHz automatically.