ELECTRICAL-to-OPTICAL
OPTICAL-to-ELECTRICAL
CONVERTERS
- Compact logic-level optical signal link components
- Allows transport of logic levels and fast triggers over long distances in high EMI environments
- Fast optical and electrical rise times
- Below 10 picoseconds typical RMS link jitter
- Uses commonly-available 62/125 micron multimode ST-connectorized fiber
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.
A J720/J730 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 and J730 are compatible with the Highland model P400 Digital Delay/Pulse Generator and the company's other VME-packaged electrical/optical converter products.
The J720 and J730 are compatible with the Highland model P400 Digital Delay/Pulse Generator and the company's other VME-packaged electrical/optical converter products.
| 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 | ||
|
|
|||
| INPUT |
|
||
| OUTPUTS |
|
||
| COUPLING | DC | ||
| PROPAGATION DELAY |
4 ns nominal | ||
| JITTER | Below 12 ps RMS, combined J720+J730 | ||
| SIZE | 3.3 x 2.1 x 0.9 inch extruded enclosure | ||
| ACCESSORIES |
|
||