An Undersea Fiber-Optic Regenerator Using an Integral-Substrate Package and Flip-Chip SAW Mounting
- 1 November 1984
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal on Selected Areas in Communications
- Vol. 2 (6), 966-972
- https://doi.org/10.1109/JSAC.1984.1146156
Abstract
A 324-Mbit/s electrical regenerator module intended for undersea optical-fiber systems is described. It has a sensitivity of 20 mV peak to peak, at which the total jitter is 3.3° rms, a low figure achieved by close attention to balance at chip and circuit board level. Timing phase adjustment is by means of a single select-on-test resistor, which enables the timing to be optimized quicker and more accurately than by conventional means. The regenerator functions are realized using four chips in the proven ECL-40 technology. This number reduces to three if a 28-pin chip carrier is used. The power consumption of these chips totals 1.3 W. The module incorporates a novel method ("flip-chip") of mounting SAW filters which is mechanically robust without the use of organic compounds, and which improves SAW performance by the virtual elimination of electromagnetic breakthrough.This publication has 8 references indexed in Scilit:
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