Extended Memory Configuration - Keysight M8195A User Manual

1.5.4

Extended Memory Configuration

Waveform Generation
Waveform
Memory
Sequencer
Sequencer
Memory
Keysight M8195A Revision 2 – Arbitrary Waveform Generator User's Guide
The drawing below provides a more detailed overview regarding the extended
memory configuration.
Sequence Vector DAC Configuration
Alternative 1: 1 Channel
1 x Data Channel
Waveform
(256 Samples Parallel)
Sample Rate
64 GSa/s
Alternative 2: Up to 2 Channels
2 x Data Channel
Waveform
(128 Samples Parallel) Sample Rate
32 GSa/s
Alternative 3: Up to 4 Channels
4 x Data Channel
(64 Samples Parallel)
Waveform
Sample Rate
16 GSa/s
Figure 6: Extended memory configuration
The sequencer generates an ongoing stream of vectors containing 256 parallel
samples of 8 bits based on the waveform data and sequencer instructions which are
stored in the corresponding memories. Depending on the sample rate divider, which
corresponds to the interpolation factor mentioned in the above picture, 3 alternative
configurations are possible of how the vector of 256 parallel samples is used to
source up to 4 channels. The selected extended memory configuration is exclusive,
mixed modes are not possible.
Interpolator
Interpolation Factor
1
DAC Sample Rate
64 GSa/s
Interpolator
Interpolation Factor
2
DAC Sample Rate
64 GSa/s
Interpolator
Interpolation Factor
4
DAC Sample Rate
64 GSa/s
Introduction 1
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