Journal: Journal of Neural Engineering
Article Title: xDev: a mixed-signal, software-defined neurotechnology interface platform for accelerated system development
doi: 10.1088/1741-2552/adb7bf
Figure Lengend Snippet: xDev crosstalk was minimal at biologically relevant frequencies. (a) A circuit diagram showing the test circuit used to measure the crosstalk between traces. The aggressor trace is shown in purple, and the victim trace is shown in green. (b) A time-domain trace showing the induced crosstalk at 10 kHz. (c) A magnitude plot showing the crosstalk attenuation between xDev traces vs frequency. Several time-domain examples are inset to demonstrate the changes in magnitude. (d) A time domain trace showing the induced crosstalk from a digital aggressor signal at 100 kHz. (e) A time domain trace showing the effective reduction of crosstalk from a digital aggressor by a 15 kHz antialiasing filter. The crosstalk waveform is reduced to less than 1 μ V in amplitude.
Article Snippet: Typical antialiasing filters present on commercially available neural interface analog front ends specify cutoff frequencies between 2 kHz and 10 kHz (Gunderson , Blackrock Microsystems ).
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