Two dual-loop, laser-diode drivers, ADN2847 and ADN2848, operate on 3V to 3.6V supplies, bringing dual-loop capability to 3.3V systems. Pin-compatible with each other, the ADN2847 targets 50 to 622 Mb ...
The method involves changing the triple-loop cascade control to a dual-loop control architecture with an integrated outer loop for position and speed control and an inner loop for current control.
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