Cover story S
pectrum Instrumentation launched a family of DDS Generators named the 96xx series, forming a new product category in the company’s portfolio. The new DDS Instruments offer up to 50 sine wave carriers on one single output channel. This feature provides
a new way for engineers and scientists to produce and independently control multi-tone sine signals. DDS, which is short for “Direct Digital Synthesis”, is a powerful technique for generating high-purity signals (typically sinewave cores, also called carriers or tones) with ultrafast switching between output frequencies and fine frequency resolution. The products can produce multiple tones, covering a broad range of operating frequencies up to 200 MHz. It makes them uniquely agile signal sources that are suitable for demanding applications in industries such as biomedicine, commu- nications, semiconductors and quantum science.
12 DIFFERENT MODELS
The 96xxs series comprises 12 different models in three different formfactors; PCIe cards, PXIe modules and Ethernet instruments. A single PCIe or PXIe card can produce up to 50 different low-phase-noise variable-frequency tones and is available with up to 4 channels. The stand-alone Ethernet instruments offer from 2 to 24 channels. For applications needing more than 50 tones, the larger NETBOX units support up to 300, or it is possible to connect multiple cards together with the Star Hub synchronization module to create systems with up to 400 tones. All models provide integrated output amplifiers with program- mable signal amplitudes up to ±2.5 V into 50 Ohm loads, or ±5 V for high-impedance.
EXTREMELY FAST PARAMETER CHANGES The speed at which these products can change the characteristics of a tone is what makes them different to conventional signal generators. Fully program- mable, changes can be made using simple commands almost instantly. New settings for a tone’s frequency, amplitude and phase as well as amplitude slopes and
The brand new 96xx-series contains 12 different DDS Generators that are able to produce up to 50 sinewave cores on one single output channel. The diagram shows these 50 cores in frequency domain.
frequency slopes can be initiated during runtime, or via preloaded sequences of DDS commands. Millions of DDS commands can be stored in the on-board memory. Setting changes can be triggered externally, or by an internal timer, or immediately on command. No transition jitter or glitches appear and the timing resolution for sequencing commands is as small as just 6.4 nanoseconds.
DDS CONTROLS WAVEFORMS IN TEST AND MEASUREMENT, COMMUNICA- TIONS AND QUANTUM
The 96xx series DDS generators provide an easy and programmable way for users to produce trains of waveforms, frequency sweeps or finely-tuneable references of various frequencies and profiles. Applications 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. Another application is the control of lasers through AODs and AOMs, as often used in quantum exper- iments. Laser control can be made at very high speeds with just a few simple commands - this is in contrast to the more processing-intensive method that uses an Arbitrary Waveform Generator (AWG) and demands large data array calculations. Issuing a small series of slope commands, the user can control advanced functions like s-shaped or custom-shaped frequency transitions, custom pulse envelopes, AM or FM modulation and more.
EASY SYSTEM INTEGRATION
Running under Windows or Linux operating systems, the 96xx series DDS generators can be programmed using programming examples for C++, Python, C#, JAVA, LabVIEW, MATLAB and others as well as a high-level Python API‘s that provide an easy way to control the products.
AVAILABILITY
The 96xx series DDS generators are available now. The products carry a 5-year product warranty, with free software and firmware updates, as well as customer support, direct from the engineering team, for the life of the product.
Find out more about the product:
https://youtu.be/FEzjhXFNfF0
In DDS-mode, only a few commands are needed to, for example, generate a sine wave (orange block), accelerate the frequency (blue block) and lower the amplitude (green block).
8
Spectrum Instrumentation
www.spectrum-instrumentation.com T: +49-4102-6956-0 E:
info@spec.de
November 2024 Instrumentation Monthly
DDS GENERATORS WITH 50 TONES PER CHANNEL
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96
