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Arbitrary waveform generation mode – National Instruments NI 5422 User Manual

Page 27

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27

NI 5422 Specifications

Arbitrary Waveform Generation Mode

Table 10.

Specification

Value

Comments

Memory
Usage

The NI 5422 uses the Synchronization and Memory Core
(SMC) technology in which waveforms and instructions
share onboard memory. Parameters, such as number of
segments in sequence list, maximum number of waveforms
in memory, and number of samples available for waveform
storage, are flexible and user defined.

Onboard
Memory Size

8 MB standard:

8,388,608 bytes

32 MB option:

33,554,432 bytes

256 MB option:

268,435,456 bytes

512 MB option:

536,870,912 bytes

Output Modes

Arbitrary Waveform mode and Arbitrary Sequence mode

Arbitrary
Waveform
Mode

In Arbitrary Waveform mode, a single waveform is selected
from the set of waveforms stored in onboard memory and
generated.

Arbitrary
Sequence
Mode

In Arbitrary Sequence mode, a sequence directs the NI 5422
to generate a set of waveforms in a specific order. Elements
of the sequence are referred to as segments. Each segment is
associated with a set of instructions. The instructions
identify which waveform is selected from the set of
waveforms in memory, how many loops (iterations) of
the waveform are generated, and at which sample in the
waveform a marker output signal is sent.

Minimum
Waveform
Size
(Samples)

Trigger

Mode

Arbitrary

Waveform

Mode

Arbitrary

Sequence

Mode

The Minimum
Waveform Size
is sample rate
dependent in
Arbitrary
Sequence mode.

Single

16

16

Continuous

32

192 at >50 MS/s

96 at

≤50 MS/s

Stepped

32

192 at >50 MS/s

96 at

≤50 MS/s

Burst

32

192 at >50 MS/s

96 at

≤50 MS/s