RIGOL DG1000Z Series User Manual

Page 135

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

). 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.