Highland Technology J720
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Contents |
Overview
ELECTRICAL-to-OPTICAL CONVERTER
It has always been difficult to transport fast logic signals long distances over copper conductors. Coaxial or twisted-pair transmission lines introduce attenuation, dispersion, ground loops, and provide entrée for external electrical noise. The result can be jitter, pulse width distortion, and ultimately logic errors.
The J720 is a compact signal-powered electrical-to-opticalconverter.
When used with a J730-1, the combination can transport a logic level or critical timing triggers over kilometer distances in high EMI environments with link jitter typically below 10 ps RMS. The J730 provides a digital logic output with risetime below 750 ps, and a fast analog (180 MHz bandwidth) output is also provided for monitoring link integrity.
The J720 is compatible with the Highland model P400 Digital Delay/Pulse Generator and the company's VME-packaged electrical/optical converter products.
Features
- Compact logic-level optical signal link component
- Allows transport of logic levels and fast triggers over long distances in high EMI environments
- Fast optical and electrical rise times
- Below 12 picoseconds typical RMS link jitter
- Uses commonly-available 62/125 micron multimode ST-connectorized fiber
Specifications
| INPUT | +5 volt nominal behind 50 ohms, BNC connector |
| OUTPUT | 1 mW nominal fiber coupled power, 850 nm, into 62/125 ST multimode fiber. |
| COUPLING | DC |
| PROPAGATION DELAY | 1 ns nominal |
| OPTICAL RISETIME | 100 ps typ driven by P400 delay generator |
| SIZE | 3 x 0.5 inch aluminum cylinder |
Manuals, drivers, downloads & other resources
http://www.highlandtechnology.com/DSS/J720DS.html
See also
J724 Electrical-to-Optical Converter
J730 Optical-to-Electrical Converter
J740 Fast Optical-to-Electrical Converter
J750 Wideband amplifier
V660 12-channel B-size VME time-interval measurement module
V720 6-Channel VME Electrical-to-Optical Converter
V730 6-Channel VME Optical-toElectrical Converter
T735 DC-coupled Optical-to-Electrical Converter
Dealers, trainers, support, maintenance & service centers
United States
California
San Francisco
P: (415) 551-1700
F: (415) 551-5129
http://www.highlandtechnology.com
info@highlandtechnology.com
