com xr MARCH 2005 PRELIMINARY XRK7988 REV.
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1 INTELLIGENT DYNAMIC CLOCK SWITCH PLL CLOCK DRIVER device will switch to the good secondary clock and phase/frequency alignment will occur with minimal output phase disturbance.
The typical phase bump caused by a failed clock is eliminated.
FEATURES GENERAL DESCRIPTION The XRK7988 is a PLL clock driver designed specifically for redundant clock tree designs.
The device receives two differential LVPECL clock signals from which it generates 5 new differential LVPECL clock outputs.
Two of the output pairs regenerate the input signals frequency and phase while the other three pairs generate 8x, phase aligned clock outputs.
Exte...

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