8761I Data Sheet
©2016 Integrated Device Technology, Inc Revision C January 25, 20164
TABLE 3D. CONTROL FUNCTION TABLE
TABLE 3E. CONTROL FUNCTION TABLE (PCI CONFIGURATION)
Inputs
Outputs
PLL_SEL = 1 Frequency
D_SELx1 D_SELx0 FBDIV_SEL1 FBDIV_SEL0
Reference Frequency
(MHz)
QX0:QX3
QX0:QX3
(MHz)
FB_OUT
(MHz)
0 0 0 0 66.67 x 2 133 66.67
0 0 0 1 33.33 x 4 133 33.33
0 0 1 0 25 x 5.33 133 25
0 0 1 1 20 x 6.67 133 20
0 1 0 0 66.67 x 1.5 100 66.67
0 1 0 1 33.33 x 3 100 33.33
0 1 1 0 25 x 4 100 25
0 1 1 1 20 x 5 100 20
1 0 0 0 66.67 x 1 66.67 66.67
1 0 0 1 33.33 x 2 66.67 33.33
1 0 1 0 25 x 2.67 66.67 25
1 0 1 1 20 x 3.33 66.67 20
1 1 0 0 66.67 ÷ 2 33.33 66.67
1 1 0 1 33.33 ÷ 1 33.33 33.33
1 1 1 0 25 x 1.33 33.33 25
1 1 1 1 20 x 1.67 33.33 20
NOTE: D_SELx1 denotes D_SELA1, D_SELB1, D_SELC1, and D_SELD1. D_SELx0 denotes D_SELA0, D_SELB0, D_
SELC0, and D_SELD0. QX0:QX3 denotes QA0:QA3, QB0:QB3, QC0:QC3, and QD0:QD3.
Inputs
Outputs
PLL_SEL =1 Frequency
D_SELx1 D_SELx0 FBDIV_SEL1 FBDIV_SEL0
Reference Fre-
quency Range
(MHz)
QX0:QX3 QX0:QX3 (MHz)
FB_OUT
(MHz)
0 0 0 0 41.6 - 83.33 x 2 83.33 - 166.67 41.6 - 83.33
0 0 0 1 20.83 - 41.67 x 4 83.33 - 166.67 20.83 - 41.67
0 0 1 0 15.62 - 31.25 x 5.33 83.33 - 166.67 15.62 - 31.25
0 0 1 1 12.5 - 25 x 6.67 83.33 - 166.67 12.5 - 25
0 1 0 0 41.6 - 83.33 x 1.5 62.4 - 125 41.6 - 83.33
0 1 0 1 20.83 - 41.67 x 3 62.4 - 125 20.83 - 41.67
0 1 1 0 15.62 - 31.25 x 4 62.4 - 125 15.62 - 31.25
0 1 1 1 12.5 - 25 x 5 62.4 - 125 12.5 - 25
1 0 0 0 41.6 - 83.33 x 1 41.6 - 83.33 41.6 - 83.33
1 0 0 1 20.83 - 41.67 x 2 41.6 - 83.33 20.83 - 41.67
1 0 1 0 15.62 - 31.25 x 2.67 41.6 - 83.33 15.62 - 31.25
1 0 1 1 12.5 - 25 x 3.33 41.6 - 83.33 12.5 - 25
1 1 0 0 41.6 - 83.33 ÷ 2 20.8 - 41.67 41.6 - 83.33
1 1 0 1 20.83 - 41.67 ÷ 1 20.8 - 41.67 20.83 - 41.67
1 1 1 0 15.62 - 31.25 x 1.33 20.8 - 41.67 15.62 - 31.25
1 1 1 1 12.5 - 25 x 1.67 20.8 - 41.67 12.5 - 25
NOTE: D_SELX1 denotes D_SELA1, D_SELB1, D_SELC1, and D_SELD1. D_SELX0 denotes D_SELA0, D_SELB0, D_
SELC0, and D_SELD0. QX0:QX3 denotes QA0:QA3, QB0:QB3, QC0:QC3, and QD0:QD3.