RIGOL DG1000Z Series - Manual (Page 135)

Chapter 2 Front Panel Operations RIGOL
DG1000Z User’s Guide 2-85
KEY POINTS:
Sync Signals of Various Waveforms:
1. Basic Waveform
1) The frequency of the basic waveform is less than or equal to 100kHz or
the sync delay is not 0:
The sync signal is a Square with 50% duty cycle and the same frequency
as that of the basic waveform. When ouputting the first waveform point,
the sync signal is TTL high level.
2) The frequency of the basic waveform is greater than 100kHz:
 Sine and Ramp: the sync signal is a Square with 50% duty cycle.
 Square and Pulse: the sync signal is a Square with variable duty cycle
which varies with the duty cycle of the output signal.
Take 0V voltage (or the DC Offset of the basic waveform) as the
reference, the sync signal is TTL high level when the corresponding value
of the output signal is greater than the reference. When the frequency of
the basic waveform is less than or equal to 30MHz, the sync signal has the
same frequency as the basic waveform. When the frequency of the basic
waveform is greater than 30MHz, the frequency of the sync signal is (the
basic waveform frequency÷2 n ). Wherein, n represents the frequency
dividing coefficient and it is equal to 1 when the frequency of the basic
waveform is greater than 30MHz and less than or equal to 60MHz.
3) Noise: there is no sync signal output.
2. Harmonics
For harmonics, the sync signal is a square with 50% duty cycle and the same
frequency as that of the fundamental waveform. When ouputting the first
waveform point, the sync signal is TTL high level.
3. Arbitrary Waveform
For arbitrary waveform, the sync signal is a square with 50% duty cycle and
the same frequency as that of the arbitrary waveform. When ouputting the
first waveform point, the sync signal is TTL high level.