ICS839893I Datasheet, PDF (3/10 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-13 LVCMOS/LVTTL BUFFER DIVIDER

Integrated
Circuit
Systems, Inc.
ICS839893I
LOW SKEW, 1-TO-13
LVCMOS/LVTTL BUFFER DIVIDER
TABLE 3. CLOCK FREQUENCY FUNCTION TABLE
FSEL0
Inputs
FSEL1 FSEL2
FSEL3
fREF Range
(MHz)
0
0
0
0
DC - 250
0
0
0
1
0
0
1
0
DC - 250
0
0
1
1
0
1
0
0
DC - 250
0
1
0
1
0
1
1
0
DC - 250
0
1
1
1
1
0
0
0
DC - 250
1
0
0
1
1
0
1
0
1
0
DC - 250
1
1
1
1
0
0
DC - 250
1
1
0
1
1
1
1
0
DC - 250
1
1
1
1
QAx
fQAx (MHz)
fREF ÷ 1
fREF ÷ 2
fREF ÷ 2
fREF ÷ 4
fREF ÷ 2
fREF ÷ 16
fREF ÷ 8
fREF ÷ 4
Outputs
QBx
fQBx (MHz)
fREF ÷ 1
fREF ÷ 2
fREF ÷ 2
fREF ÷ 4
fREF ÷ 2
fREF ÷ 4
fREF ÷ 4
fREF ÷ 8
fREF ÷ 2
fREF ÷ 4
fREF ÷ 16
fREF ÷ 32
fREF ÷ 8
fREF ÷ 16
fREF ÷ 4
fREF ÷ 8
QC
fQC0 (MHz)
fREF ÷ 8
fREF ÷ 8
fREF ÷ 6
fREF ÷ 8
fREF ÷ 4
fREF ÷ 16
fREF ÷ 8
fREF ÷ 4
839893AYI
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3
REV. A AUGUST 8, 2005