Syscomp
Electronic Design
Limited
Est. 1979
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Circuit Gear
(CGR-101)
Oscilloscope
Standard Function Generator
Arbitrary Waveform Generator
Network Analyzer
Noise Generator
Digital Inputs and Outputs
PWM Output
and more...
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An oscilloscope, waveform generator, and digital I/O port integrated into one small, low cost unit.
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20MS/s dual channel, 10-bit oscilloscope
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2 MHz DDS arbitrary waveform generator
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Eight channel digital I/O
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USB powered, no AC adaptor required
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Open source software for Windows, Linux and Mac
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Screen Shots |
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Specifications |
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Oscilloscope
| Maximum Sampling Rate |
20MS/s |
| Analog Bandwidth |
2 MHz |
| Input Voltage Span |
+/-0.25Vpk to +/-25Vpk |
| Input Ranges |
7 ranges in 1:2:5 sequence
2Hardware Ranges
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| Vertical Calibration |
Yes, software |
| Input A/D Resolution |
10 bit |
| Input Impedance |
1Mohm||20pF |
| Timebase Span |
50ns/div to 100ms/div |
| Timebase Ranges |
20 steps in 1:2:5 sequence |
| Trigger |
Normal, Auto, Single Shot |
| Trigger Polarity |
Rising and falling |
| Trigger Level |
On-screen, cursor selectable |
| Pre-Post Trigger Display |
On-screen, cursor selectable |
| Readouts |
Amplitude and timebase cursors |
| Sample Memory |
1K points/channel |
| Display refresh rate |
> 2 updates/second |
| Interface |
USB 1.0 or 2.0 |
| Additional Displays |
X-Y plot
Spectrum Analysis (FFT)
Histogram
Waveform Math
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Waveform Generator
| Frequency Range |
0.1 Hz to 3 MHz |
| Frequency Resolution |
0.1 Hz |
| Output Amplitude |
+/-3V |
| Amplitude Control |
Hardware |
| Vertical Resolution |
8 bits |
| Offset Control |
Software |
| Output Impedance |
150 ohms |
| Waveforms |
Sine, Square, Triangle, Ramp, Noise |
| Noise Spectrum |
Flat to 2MHz |
| Pulse Waveform |
Variable duty cycle at constant frequency |
| Arbitrary Waveform |
8 bit resolution, vertical and horizontal |
Digital I/O
| Output |
8 bits, 5 volt, HCMOS |
| Input |
8 bits, 3/5 volt, HCMOS |
| Other |
PWM Output
Interrupt Input
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Vector Network Analyzer/Bode Plotter
| The Bode Plotter is VNA (Vector Network Analyzer) software that operates the CircuitGear hardware over the frequency range 0.1 Hz to 2 MHz to measure amplitude and phase for circuit theory and filter design exercises. |
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Software |
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The oscilloscope, generator, and digital I/O are operated from a software GUI (graphic user interface) included with the hardware. The software is open-source and source code is included. The software is written in Tcl/Tk, a scripting language that is easy to learn yet powerful for creating GUIs. It runs under Windows, Linux, Unix, and Mac operating systems.
CircuitGear is compatible with National Instruments LabVIEW, MATLAB, Visual Basic, and any application or programming language which can access serial ports. Syscomp provides LabVIEW example VIs that demonstrate how to control CircuitGear. Screen shots of the LabVIEW examples are shown below. The LabVIEW examples are available on the download page.
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System Requirements |
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Windows
Pentium 233 MHz, 64 MB RAM, 5 MB Hard Drive Space
Minimum 1024x768 screen resolution at 16 bit color depth
USB Port
Windows 98SE/Windows ME/Windows 2000/Windows XP/Windows Vista/Windows 7 32/64
Linux
Linux
with kernel 2.4 or higher, X Windows
USB Port
Mac
Mac OS X 10.4 or higher, PowerPC or x86
USB Port |
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