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The Signal Generator software that runs on your PC and controls the USBee ZX Digital Test Pod is a powerful addition to any design and debugging development.
The Signal Generator software provides the following functions:
- Tiny USBee Pod (2.1" x 1.3" x 0.5") connects to your hardware
- USB 2.0 High Speed connects the pod to your PC
- Signal Generator software runs on your PC
- Generate Sample Rates (1Msps to 24Msps)
- 8 channels
- Sample Buffer: 1 million up to the available PC RAM (hundreds of millions)
- Output Sample Clock
- External Trigger Input
- Waveform display lets you "Draw" the signals you want (above)
- Save, Open and Print data and settings
- Movable cursors for easy measurements
- Can input files saved by the Logic Analyzer module to "playback" the capture
The USBee ZX Digital Test Pod does not need an external power supply. The USB bus supplies the power to the pod, so your PC will be supplying the power.
See the table below for actual sample rates and sample buffer depths on various PC systems
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PC System
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Sample Rate
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Maximum Buffer Depth
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HPDesktop, 2.53GHz P4, 512MB RAM, Internal USB 2.0,
WinXP Home
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24Msps
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258 million
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HPDesktop, 2.53GHz P4, 1GB RAM, Internal USB 2.0,
WinXP Home
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24Msps
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749 million
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Compaq notebook, 847MHz Mobile AMD Duron processor, 192MB RAM, USB 2.0 Cardbus port,
WinXP Pro
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8Msps
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54 million
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NEC Desktop,
450MHz Pentium III,
128MB RAM,
Adaptec PCI-USB2.0 card,
Win2000 Pro
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8Msps
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18 million
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Specifications for the USBee ZX running the Signal Generator Module
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Maximum Sample Rate
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24 Million samples
per second (*)
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Number of Channels
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8
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Internal Clocking
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Yes
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Number of Samples
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1 million up to available PC RAM (hundreds of millions)
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External Trigger
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Yes
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Available Sample Rates
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24Msps
16Msps
12Msps
8Msps
6Msps
4Msps
3Msps
2Msps
1Msps
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Sample Clock Output
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Yes
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Power Supply Outputs
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Regulated 3.3V
5V
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Test Leads
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14 9" leads with 0.025" square sockets
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USB Cable Length
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6 Feet
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Dimensions
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2.1" x 1.3" x 0.5"
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Minigrip Test Clips
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14
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Channel Output Drive Current
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4mA
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Output High Level
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> 2.7V
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Output Low Level
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< 0.8V
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(*) Maximum sample rate depends on your PC hardware CPU speed and USB 2.0 bus utilization. For the fastest possible sample rates, follow these simple steps:
- disconnect all other USB devices not needed from the PC
- Do not run other applications while capturing or generating samples.
- Use a USB2.0 High Speed enabled port
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