Friday, July 19, 2024

DDS Possibility for high-speed AWGs generates as much as 20 sine waves

DDS Possibility for high-speed AWGs generates as much as 20 sine waves


20 impartial sine waves as much as 400 MHz will be managed on one generator channel

Spectrum Instrumentation has launched a brand new firmware choice for its vary of versatile 16-bit Arbitrary Waveform Mills (AWGs) with sampling charges as much as 1.25 GS/s and bandwidths as much as 400 MHz. The brand new choice permits customers to outline 23 DDS cores per AWG-card, that may be routed to the {hardware} output channels. Every DDS core (sine wave) will be programmed for frequency, amplitude, section, frequency slope and amplitude slope. This permits, for instance, the management of lasers by AODs and AOMs, as typically utilized in quantum experiments, with only a few easy instructions – as a substitute of creating giant information array calculations. The DDS output will be synchronized with exterior set off occasions or by a programmable timer with decision of 6.4 ns.

DDS – Direct Digital Synthesis – is a technique for producing arbitrary periodic sine waves from a single, fixed-frequency reference clock. It’s a approach extensively utilized in a wide range of sign era purposes. The DDS performance carried out on Spectrum Instrumentation’s AWGs is predicated on the precept of including a number of ‘DDS cores’ to generate a multi-carrier (multi-tone) sign with every provider having its personal well-defined frequency, amplitude and section.

With the flexibility to change between the conventional AWG mode (which generates waveforms out of pre-programmed information) and the DDS mode (which wants just a few instructions to generate sine wave carriers), the Spectrum AWGs are extremely versatile and will be tailored to virtually any utility. In DDS-mode, the AWG acts as a base for the multi-tone DDS. The models built-in 4 GByte of reminiscence and quick DMA switch mode then permits the streaming of DDS instructions at a price as excessive as 10 million instructions per second! This distinctive functionality gives the flexibleness to carry out user-defined slopes (e.g. s-shaped) in addition to varied modulation varieties (e.g. FM and AM) with easy, easy-to-use, DDS instructions.

Pic2_DDS-commands_(print)
In DDS-mode, just a few instructions are wanted to e.g. generate a sine wave (orange block), speed up the frequency (blue block) and decrease the amplitude (inexperienced block).

For years now, Spectrum AWGs have been efficiently used worldwide in pioneering quantum analysis experiments. Since 2021, Spectrum Instrumentation has been a part of the BMBF (German federal ministry of training and analysis) funding program ‘quantum applied sciences – from fundamental analysis to market’ as a part of the Rymax One consortium. The intention of this consortium is constructing a Quantum Optimizer. The event of the DDS choice was primarily based on suggestions from the consortium companions and different analysis institutes worldwide.

The flexibleness and quick streaming-mode of Spectrum’s AWGs, which additionally allows information to be streamed straight from a GPU, permits the management of Qubits straight from a PC. Whereas utilizing an AWG on this manner gives full management of the generated waveforms, the downside is that massive quantities of information have to be calculated. This slows the essential decision-making loop. In distinction, utilizing the versatile multi-tone DDS performance tremendously reduces the quantity of information that have to be transferred, whereas nonetheless holding full management. All the important thing performance required for quantum analysis is in-built. With only a single command customers can apply intrinsic dynamic linear slope capabilities to provide extraordinarily clean adjustments to frequency and amplitude.

In lots of sorts of testing programs, you will need to produce and readily management correct waveforms. The DDS choice gives a simple and programmable manner for customers to provide trains of waveforms, frequency sweeps or finely tuneable references of varied frequencies and profiles. Purposes that require the quick frequency switching and effective frequency tuning that DDS gives are widespread. They are often present in industrial, medical, and imaging programs, community evaluation and even communication expertise, the place information is encoded utilizing section and frequency modulation on a provider.

Pic3_AWGs_(print)
23 completely different AWGs are ready to make use of the brand new DDS firmware choice. They provide 16-bit decision, as much as 1.25 GS/s pace and as much as 32 channels.

The DDS choice is out there now for the total vary of M4i.66xx PCIe playing cards, M4x.66xx PXIe modules, moveable LXI/Ethernet DN2.66x models and multi-channel desktop LXI/Ethernet DN6.66xx merchandise. By merely performing a firmware replace, all beforehand bought 66xx sequence merchandise will be geared up with the brand new firmware choice. Programming will be performed utilizing the present driver SDKs which are included within the supply. Examples can be found for Python, C++, MATLAB, LabVIEW and plenty of extra. The choice is out there now.

About Spectrum Instrumentation

Spectrum Instrumentation, based in 1989, makes use of a singular modular idea to design and produce a variety of greater than 200 digitizers and generator merchandise as PC-cards (PCIe and PXIe) and stand-alone Ethernet models (LXI). In over 30 years, Spectrum has gained prospects all around the globe, together with many A-brand industry-leaders and virtually all prestigious universities. The corporate is headquartered close to Hamburg, Germany, identified for its 5-year guarantee and excellent assist that comes straight from the design engineers. Extra details about Spectrum will be discovered at www.spectrum-instrumentation.com

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