MC88915T Motorola Semiconductor Products, MC88915T Datasheet - Page 13

• Manufacturer Part Number: MC88915T
• Description: Low Skew CMOS PLL Clock Driver
• Manufacturer: Motorola Semiconductor Products

5. The t
MOTOROLA
of outputs Q/2, Q0, Q1, Q2, Q3, and Q4 will always fall
within a 500ps window within one part. However, if the
relative position of each output within this window is not
specified, the 500 ps window must be added to each side
of the tPD specification limits to calculate the total
part–to–part skew. For this reason the absolute
SKEWr
specification guarantees that the rising edges
Which is Present When a 1M
Figure 2. Depiction of the Fixed SYNC to Feedback Offset (tPD)
Table 2. Relative Positions of Outputs Q/2, Q0–Q4, 2X_Q,
Output
2X_Q
Q/2
Q0
Q1
Q2
Q3
Q4
Within the 500ps t
–274
–633
(ps)
–72
–44
–40
–16
Resistor is Tied to V
–
0
SKEWr
Spec Window
distribution of these outputs are provided in table 2. When
taking the skew data, Q0 was used as a reference, so all
measurements are relative to this output. The information
in Table 2 is derived from measurements taken from the 14
process lots described in Note 1, over the temperature and
voltage range.
(ps)
276
255
–34
250
–35
40
+
0
CC
or Ground
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