Components
DDS Option for high-speed AWGs generates up to 20 sine waves
Mumbai: Spectrum Instrumentation has released a new firmware option for its range of versatile 16-bit Arbitrary Waveform Generators (AWGs) with sampling rates up to 1.25 GS/s and bandwidths up to 400 MHz. The new option allows users to define 23 DDS cores per AWG-card, that can be routed to the hardware output channels. Each DDS core (sine wave) can be programmed for frequency, amplitude, phase, frequency slope and amplitude slope. This enables, for example, the control of lasers through AODs and AOMs, as often used in quantum experiments, with just a few simple commands – instead of making large data array calculations. The DDS output can be synchronized with external trigger events or by a programmable timer with resolution of 6.4 ns.
DDS – Direct Digital Synthesis – is a method for generating arbitrary periodic sine waves from a single, fixed-frequency reference clock. It is a technique widely used in a variety of signal generation applications. The DDS functionality implemented on Spectrum Instrumentation’s AWGs is based on the principle of adding multiple ‘DDS cores’ to generate a multi-carrier (multi-tone) signal with each carrier having its own well-defined frequency, amplitude and phase.
Advantages of using DDS for arbitrary waveform generators
With the ability to switch between the normal AWG mode (which generates waveforms out of pre-programmed data) and the DDS mode (which needs only a few commands to generate sine wave carriers), the Spectrum AWGs are highly versatile and can be adapted to almost any application. In DDS-mode, the AWG acts as a base for the multi-tone DDS. The units built-in 4 GByte of memory and fast DMA transfer mode then allows the streaming of DDS commands at a rate as high as 10 million commands per second! This unique capability provides the flexibility to perform user-defined slopes (e.g. s-shaped) as well as various modulation types (e.g. FM and AM) with simple, easy-to-use, DDS commands.
DDS in Quantum Experiments
For years now, Spectrum AWGs have been successfully used worldwide in pioneering quantum research experiments. Since 2021, Spectrum Instrumentation has been part of the BMBF (German federal ministry of education and research) funding program ‘quantum technologies – from basic research to market’ as part of the Rymax One consortium. The aim of this consortium is building a Quantum Optimizer. The development of the DDS option was based on feedback from the consortium partners and other research institutes worldwide.
The flexibility and fast streaming-mode of Spectrum’s AWGs, which also enables data to be streamed straight from a GPU, allows the control of Qubits directly from a PC. While using an AWG in this way offers full control of the generated waveforms, the drawback is that huge amounts of data need to be calculated. This slows the critical decision-making loop. In contrast, using the versatile multi-tone DDS functionality greatly reduces the amount of data that must be transferred, while still keeping full control. All the key functionality required for quantum research is built in. With just a single command users can apply intrinsic dynamic linear slope functions to produce extremely smooth changes to frequency and amplitude.
DDS controls waveforms in Test, Measurement and Communications
In many kinds of testing systems, it is important to produce and readily control accurate waveforms. The DDS option provides an easy and programmable way for users to produce trains of waveforms, frequency sweeps or finely tuneable references of various frequencies and profiles. Applications that require the fast frequency switching and fine frequency tuning that DDS offers are widespread. They can be found in industrial, medical, and imaging systems, network analysis or even communication technology, where data is encoded using phase and frequency modulation on a carrier.
Availability of DDS option
The DDS option is available now for the full range of M4i.66xx PCIe cards, M4x.66xx PXIe modules, portable LXI/Ethernet DN2.66x units and multi-channel desktop LXI/Ethernet DN6.66xx products. By simply performing a firmware update, all previously purchased 66xx series products can be equipped with the new firmware option. Programming can be done using the existing driver SDKs that are included in the delivery. Examples are available for Python, C++, MATLAB, LabVIEW and many more. The option is available now.
SEOUL: In the eternal battle between gamers demanding lightning-fast refresh rates and professionals craving pixel-perfect clarity, LG Display reckons it has found détente. The South Korean display titan is unveiling the world’s first 27-inch 4K OLED monitor panel that marries an RGB stripe structure with a blistering 240Hz refresh rate—a combination previously thought incompatible, like oil and water or fashion and function.
The breakthrough lies in how the pixels are arranged. RGB stripe structure lines up red, green and blue subpixels in neat rows, banishing the colour bleeding and fringing that plague lesser screens when you park your nose close to the display. It is the difference between reading crisp text and squinting at a rainbow-tinged mess. OLED panels using this method existed before, but they topped out at a sluggish 60Hz—fine for spreadsheets, useless for fragging opponents in first-person shooters.
LG Display’s engineering wizardry changes the game. By cranking the refresh rate to 240Hz whilst maintaining that pristine RGB stripe layout, the company has produced a panel that works equally well for colour-critical design work and twitchy gaming sessions. Better still, the panel incorporates Dynamic Frequency & Resolution technology, letting users toggle between ultra-high-definition at 240Hz and full-HD at a frankly ludicrous 480Hz. That is fast enough to make your eyeballs sweat.
The specs are suitably impressive: 160 pixels per inch for exceptional detail, optimised performance for Windows and font-rendering engines, and colour accuracy that should please the Photoshop brigade. LG Display achieved this by boosting the aperture ratio—the percentage of each pixel that actually emits light—and applying what it coyly describes as “various new technologies.” Translation: years of R&D and probably some sleepless nights.
Existing high-end gaming OLED monitors have relied on RGWB structures (which add a white subpixel) or triangular RGB arrangements. Both work, but neither delivers the sharpness that professionals demand. LG Display’s new stripe pattern is tailored specifically for monitor use, a recognition that staring at a screen from two feet away demands different engineering than watching telly from across the room.
The company is betting big on this technology, targeting the high-end monitor market where it already commands roughly 30 per cent of global OLED panel production. Among gaming OLED panels in mass production, LG Display claims world-leading specs across refresh rate, response time and resolution—a trifecta that sounds like marketing bluster until you check the numbers.
“Technology is the foundation of leadership in the rapidly growing OLED monitor market,” says LG Display head of the large display business unit Lee Hyun-woo. He promises to keep pushing “differentiated technologies compared to competitors”—corporate-speak for staying ahead of Chinese rivals snapping at LG’s heels.
The new panel will debut at CES 2026 in Las Vegas, where LG Display plans to woo customers and expand its lineup. Initial rollout targets high-end gaming and professional monitors, the sweet spot where people actually pay premiums for superior screens rather than settling for whatever came with their laptop.
Whether this technology reshapes the monitor market or remains a niche luxury depends on two things: pricing and production scale. But for now, LG Display has pulled off something rare—a genuine technical leap that solves a real problem. Gamers get their speed, designers get their clarity, and LG gets bragging rights. In the cutthroat world of display tech, that counts as a win.
