Tabor Electronics 5251, Руководство пользователя

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A
Appendices
Specifications
A-7
Carrier Frequency Range 10 Hz to 100 MHz
Modulating Sampling Clock 1 S/s to 2.5 MS/s
Number of profile indexes 2 to 30000
Pulse Generator Waveforms Characteristics
Operation The 5251 has a special mode where the instrument
type is transformed to operate as a digital pulse
generator. When this mode is selected, the
operation of the arbitrary waveform and its outputs
are disabled and possibly, arbitrary waveforms are
overwritten
Programmability 1. All pulse parameters, except rise and fall times,
may be freely programmed within the selected
pulse period provided that the ratio between the
period and the smallest incremental unit does not
exceed the ratio of 1,000,000 to 1. With the 2M
option, the ratio is extended to 2,000,000 to 1,
hence the specifications below do not show
maximum limit as each must be computed from the
above relationship.
2. Rise and fall times, may be freely programmed
provided that the ratio between the rise/fall time
and the smallest incremental unit does not exceed
the ratio of 100,000 to 1.
3. The sum of all pulse parameters must not
exceed the pulse period setting
Pulse State On or Off. On generates pulse output; Off
generates 0 Vdc
Pulse Mode Single or double, programmable
Polarity Normal, inverted or complemented
Period 80 ns minimum, programmed with 4 ns increments
Delay 0 ns min; 1e6 s max (2e6 s max with option 1)
Pulse Width 4 ns minimum; 1e3 s max
Double Pulse Delay 0 ns minimum; 1e3 s max
Rise/Fall Times 0 ns minimum; 1e3 s max (actual min = <5 ns)
High Time 0 ns minimum
Amplitude Window 10 mVp-p to 10 Vp-p
Low Level -5 V to +4.950 V
High Level -4.950 V to +5 V
Half-Cycle Waveforms Generator Characteristics
Description Half Cycle waveforms are the same as the standard
functions except waveforms are generated as a
sequence of half cycles. The delay between the half
cycles is programmable
Function Shape Sine, Triangle, Square
Frequency Range 0.01 Hz to 1 MHz
Phase Start Range 0

to 360.0

(Sine and triangle only)
Start Phase Resolution 0.1

Duty Cycle Range 0% to 99.99% (Square only)
Duty Cycle Resolution 0.1%
Run Modes Continuous, Triggered
Delay Between Half Cycles 200 ns to 20 s (Applies to continuous run mode only)
Resolution 20 ns