Tabor Electronics 5251, User Manual

Page: 295 / 298

A
Appendices
Specifications
A-5
Single Sequence Advance Current segment is sampled the specified number
of repetitions and then idles at the end of the
segment. Next trigger samples the next segment
the specified repeat count, and so on.
Mixed Sequence Advance Each step of a sequence can be programmed to
advance either a) automatically (Automatic
Sequence Advance), or b) with a trigger (Stepped
Sequence Advance)
Sequencer Steps 1 to 4096
Segment Loops 1 to 1Meg
Minimum Segment Duration 600 ns
Minimum Segment Size in a Sequence 16 points
Multi Sequence 1 to 10, selectable
Custom Sequence Creation Software ArbConnection software allows instrument control
and creation of custom sequences. Sequences are
built as tables and downloaded to the instrument
Modulated Waveforms Generator Characteristics
General
Description Using this mode of operation, one may select from a
list of built-in modulation schemes.
Carrier Waveform (CW) Sinewave
Modulation Source Internal
Run Modes Off (outputs CW), Continuous, Triggered, Delayed Trigger, Re-trigger, Burst and
Gated
Interrupted Modulation Carrier Idle Mode On or Off, programmable
Run Mode Advance Source Front panel TRIG IN, Software commands
Trigger Delay
(Trigger input to modulation output)
[(0; 200 ns to 20 s) + system delay]
Resolution 20 ns
Error 6 sample clock 150 ns + 5% of setting
Re-trigger Delay
(Modulation end to modulation restart)
200 ns to 20 s
Resolution 20 ns
Error 3 sample clock 20 ns + 5% of setting
Trigger Parameters All trigger parameters such as level, slope, jitter, etc.
apply
Marker Output
Description Marks the crossing of a specific frequency and step
setting. The marker pulse is generated through the
SYNC connector. Marker placement is available for
all modulation modes except AM
Level TTL into open circuit
Marker Type Single pulse at the specified frequency
Position Programmable for a specific frequency setting
Sweep
Swept Waveform Sine wave
Sweep Step Linear or log
Sweep Direction Up or Down
Sweep Range 10 Hz to 100 MHz
Sweep Time 1.4

s to 40 s
FM
Modulated Waveform Sine wave
Modulating Waveforms Sine, square, triangle, Ramp
Carrier Frequency Range 10 Hz to 100 MHz