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Flex01A uses two 8 bit analog to digital converter (ADC) to digitize two channels of
analog signal. A digital correlator engine calculates auto or cross correlation function.
Correlation specifications:
- Allowable sample time: 1/60 ms, 1/30 ms, 1/15 ms, and in 1/15 ms increment thereafter.
- Auto or cross correlation. (channel A, or channel A cross correlates with
channel B)
- Total number of data points: 1025
- Shift register width: 8.
- Data processing rate: 480 million operations per second. 100% real time
efficiency at sample times >= 2.1333 ms. The data processing efficiency depends on the sample times and the
correlation time of the signal at sample times < 2.1333 ms.
Hardware Specifications:
- Electrical interface: AC coupled
- Input range: 1 V peak to peak.
- Bandwidth: 100 Hz to 30 MHz.
- Physical dimensions: 2.5"x2.75"x0.8".
- Maximum power consumption: 1.5W
System requirements:
- A personal computer with a USB connections
- Pentium class CPU, 32 MB RAM, Windows 98/2000/ME operating system.
- Don’t run other high speed USB devices that requires high bandwidth simultaneously
with Flex01A or interference may occur.
Software:
The software displays the correlation function, FFT of the correlation function (power
spectrum), and 512 sample of the two signal (trace) are displayed in real time. The
following is a sample screen where the input channel A is a sine function at 100 Khz.
The data is saved in ASCII format.
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