Datasheet

in 1/8 Internal Clock Phase Angle Steps
Figure 10 illustrates the Pulse Width Adjust operation in fur-
ther detail. In this example, 00h[21:20] = “01”. Internally both
original P and original N have an alternative phase version
that lags their original phase version. Alternative phase is set
by the value in 00h[19:17]. The P output is the OR’d result of
the original P with the internally delayed P', while the N output
is the AND’d result of the original N with the internally delayed
N'. The outcome is: (1) the N output is delayed, while the P
output remains undelayed; (2) the P output pulse width has
increased, while the N output pulse width has decreased.
30129715
FIGURE 10. Pulse Width Adjustment (00h[21:20] = “01”)
Figure 11 illustrates a similar example, where 00h[21:20] =
“10”. Here, the P output is the AND’d result of the original P
with the internally delayed P', while the N output is the OR’d
result of the original N with the internally delayed N'. The out-
come is: (1) the P output is delayed, while the N output
remains undelayed; (2) the P output pulse width has de-
creased, while the N output pulse width has increased.
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LM96570