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Chapter 3 Features and Functions
Output Configuration
3
Sync Output Signal
A sync output is provided on the front-panel Sync connector. All of the
standard output functions (except noise and dc) have an associated Sync
signal. For certain applications where you may not want to output the
Sync signal, you can disable the Sync connector.
• By default, the Sync signal is routed to the Sync connector (enabled).
When the Sync signal is disabled, the output level on the Sync
connector is at a logic “low” level.
• When a waveform is inverted (see “Waveform Polarity” on the previous
page), the Sync signal associated with the waveform is not inverted.
• The Sync signal setting is overridden by the setting of the marker
used with the sweep mode (see page 94). Therefore, when the marker
is enabled (and the sweep mode is also enabled), the Sync signal
setting is ignored.
• For sine, ramp, and pulse waveforms, the Sync signal is a square
waveform with a 50% duty cycle. The Sync signal is a TTL “high”
when the waveform’s output is positive, relative to zero volts (or the
dc offset value). The Sync signal is a TTL “low” when the output is
negative, relative to zero volts (or the dc offset value).
• For square waveforms, the Sync signal is a square waveform with the
same duty cycle as the main output. The Sync signal is a TTL “high”
when the waveform’s output is positive, relative to zero volts (or the
dc offset value). The Sync signal is a TTL “low” when the output is
negative, relative to zero volts (or the dc offset value).
• For arbitrary waveforms, the Sync signal is a square waveform with a
50% duty cycle. The Sync signal is a TTL “high” when the first
downloaded waveform pint is output.
• For internally-modulated AM, FM, and PWM, the Sync signal is
referenced to the modulating waveform (not the carrier) and is a
square waveform with a 50% duty cycle. The Sync signal is a TTL
“high” during the first half of the modulating waveform.
• For externally-modulated AM, FM, and PWM, the Sync signal is
referenced to the carrier waveform (not the modulating waveform)
and is a square waveform with a 50% duty cycle.
33210A users guide.book Page 66 Wednesday, July 16, 2008 11:16 AM
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Страница 14: ...12 Contents Contents 33210A users guide book Page 12 Wednesday July 16 2008 11 16 AM ...
Страница 15: ...1 1 Quick Start 33210A users guide book Page 13 Wednesday July 16 2008 11 16 AM ...
Страница 33: ...2 2 Front Panel Menu Operation 33210A users guide book Page 31 Wednesday July 16 2008 11 16 AM ...
Страница 53: ...3 3 Features and Functions 33210A users guide book Page 51 Wednesday July 16 2008 11 16 AM ...
Страница 147: ...4 4 Remote Interface Reference 33210A users guide book Page 145 Wednesday July 16 2008 11 16 AM ...
Страница 273: ...5 5 Error Messages 33210A users guide book Page 271 Wednesday July 16 2008 11 16 AM ...
Страница 301: ...6 6 Application Programs 33210A users guide book Page 299 Wednesday July 16 2008 11 16 AM ...
Страница 311: ...7 7 Tutorial 33210A users guide book Page 309 Wednesday July 16 2008 11 16 AM ...
Страница 335: ...8 8 Specifications 33210A users guide book Page 333 Wednesday July 16 2008 11 16 AM ...