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參數資料
| 型號： | 91305AM |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 91305 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| 封裝： | 0.150 INCH, LEAD FREE, SOIC-8 |
| 文件頁數： | 5/9頁 |
| 文件大小： | 157K |
| 代理商： | 91305AM |
5
ICS91305I
0691E—08/20/04
Output to Output Skew
The skew between CLKOUT and the CLK(1-4) outputs is not dynamically adjusted by the PLL. Since CLKOUT is one
of the inputs to the PLL, zero phase difference is maintained from REF to CLKOUT. If all outputs are equally loaded,
zero phase difference will maintained from REF to all outputs.
If applications requiring zero output-output skew, all the outputs must equally loaded.
If the CLK(1-4) outputs are less loaded than CLKOUT, CLK(1-4) outputs will lead it; and if the CLK(1-4) is more loaded
than CLKOUT, CLK(1-4) will lag the CLKOUT.
Since the CLKOUT and the CLK(1-4) outputs are identical, they all start at the same time, but different loads cause
them to have different rise times and different times crossing the measurement thresholds.
REF input and
all outputs
loaded Equally
REF input and CLK(1-4)
outputs loaded equally, with
CLKOUT loaded More.
REF input and CLK(1_4)
outputs loaded equally, with
CLKOUT loaded Less.
Timing diagrams with different loading configurations
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| 91305AGILFT | 91305 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
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