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Cable Driver

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Cable Driver

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Signal Conditioning and Phase Shift Circuit - Fast Comparator - Cable Driver

The Low Voltage Differential Signaling (LVDS) cable driver provides a fast, low noise transmission of a TTL up signal to a remote location while providing some protection against ground differences.

The Fast Comparator/Cable Driver is comprised of two parts: the first provides a variable threshold comparator to clean up an incoming TTL signal and an LVDS cable driver, while the second has an LVDS receiver with TTL output. The circuit design has been used to help to clean up the photodiode input signal from a laser clock and to provide some fine adjustment of the signal phase via an analog comparator.

This particular design was intended for use over a 5-meter distance. To make cabling simple and inexpensive, a standard A-B USB cable is used for the LVDS transmission. This cable connects the LVDS OUT on the transmitter side to the LVDS IN on the receiver side. A USB wall adapter plugs into the transmit side to provide power. The power is also transmitted on the signal cable to the receiver to provide power there.

An example of prior use can be found here: Kong et al. 2015

Opportunity:

Free to make for Non-Profit Research by downloading designs at Flintbox (see link at upper right) and rights and designs available for Commercial License.

For inquries, please reference:

Janelia 2016-039

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Cable Driver
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Contact

Michael Perham
Head of Innovation Management
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