Dual Channel 0.05 - 800MHz PCIe Direct Digital Synthesizer with High Speed Dynamic Profile Switching
Berkeley, CA, May 20, 2014

Synth1000x2 board generates two independent sine wave outputs, each switchable via software or external TTL inputs, through up to 8 frequency/phase/amplitude profiles.

Berkeley, CA, May 20, 2014. Ultraview Corporation, a maker of high speed data acquisition and frequency synthesis boards since 1989, announces a Dual DDS PCIe board with rapid profile switching for demanding uses in communications, RADAR, medical imaging, spectroscopy, RF/Microwave testing and other critical applications.

Based on two AD9914 DDS ICs driven by single 3.5GHz CRO synced to a 1ppm-accurate TCXO timebase, the Synth1000x2 can be set to produce two independent sine wave outputs, the frequency, amplitude, optional sweep rate and phase of which can either be changed manually using either a LabVIEW™ or QT GUI, or alternatively can be dynamically switched in real time (in under 50ns), allowing creating of complex modulated carriers, or rapid waveform sequences. High speed dynamic switching among up to 8 separate profiles on each synthesizer, can either be controlled by software or by 3 external TTL inputs.

In the simplest mode, a user can simply use the LabVIEW™ or QT GUI to program a single frequency or two separate frequencies, one on each channel. Or, he/she can preset up to 8 frequency/phase/amplitude profiles, and then just press a button to select which profile each synthesizer is to use - much like a car radio.

If fast frequency/amplitude/phase switching is desired, the external TTL rapid profile control mode allows each synthesizer channel to be independently switched externally in frequency and/or amplitude and/or phase. Up to 8 complete profiles can be programmed in advance, using either a C program or via user entry into fields in a simple GUI control panel. Then, the frequency profiles can be dynamically selected via a 3-bit TTL vector which may be externally input via a small connector block containing 6 SMA connectors, 3 for each channel. Of course fewer profiles may be selected. For example, for simple frequency shift keying (FSK) a single TTL input can be used to tell the Synth1000x2 to rapidly switch between two frequencies on a single channel.

Alternatively, instead of up to 8 profiles on two separate channels, 16 switchable profiles can be achieved on a single channel by connecting the two outputs to a simple resistive power combiner.

While the Synth1000x2 is rated to produce frequencies from 0.05 MHz to 800 MHz, it can, with reduced performance and amplitude produce signals from 10 KHz to 1000 MHz.

In addition to the two programmable sine-wave outputs contained in all Synth1000x2 models, the Synth1000x2-SQR model can concurrently output two sine waves and two 1V p-p AC-coupled square waves with 200ps rise and fall times, for low-jitter control of external apparatus, such as heterodyned RADAR pulse generators and samplers. The frequency range of the sine wave outputs is 0.05MHz to 800MHz, while that of the 2v p-p square wave outputs is 5MHz to 800MHz.

All models include 64-bit Windows™ 7/8 driver packages, as well as comprehensive C example programs, and LabVIEW™ and QT GUIs for Windows. Additionally C example programs and a QT GUI-based control panel are included for CentOS 6.4 linux.

Figure 1 shows the Synth1000x2 board. Figure 2 illustrates the LabVIEW™ control panel with 8 separate profiles set for each channel, and the resulting complex output waveforms on the two channels when externally switched via their TTL profile select inputs.


Synth1000x2 - Dual 0.05MHz to 800MHz DDS board: $ 4,995 Quantity 1
Synth1000x2-SQR - Dual 0.05MHz to 800MHz DDS board with sine and square wave outputs: $5995 Quantity 1
Lead times: All models - Stock to 1 week ARO

Figure 2. Complex example sequence of frequency/amplitude profiles generated by Synth1000x2. External TTL inputs rapidly switch between eight profiles specified on LabVIEW™ panel shown. Waveforms are displayed using Ultraview AD12-2000x2 dual 12-bit 2GSPS high dynamic range A/D board.

Editorial contact: Barbara Sacks 925-253-2960
Technical contact: David Schriebman 510-280-5791

Ultraview Corporation 808 Gilman Street, Berkeley, CA 94710 925-253-2960