ICS87973I-147 Datasheet, PDF (3/19 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-12 LVCMOS / LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER

ICS87973I-147
LOW SKEW, 1-TO-12, LVCMOS/LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER
Simplified Block Diagram
nMR/OE
CLK ^Pullup
nCLK
CLK0 ^Pullup
CLK1 ^Pullup
CLK_SEL ^Pullup
REF_SEL ^Pullup
EXT_FB ^Pullup
1
0
0
1
VCO_SEL ^Pullup
PLL_SEL ^Pullup
PLL
VCO RANGE
240MHz - 500MHz
0
÷2
0
1
÷1
1
FSEL_A[0:1]
2
FSEL_
A1 A0 QAx
0 0 ÷4
0 1 ÷6
1 0 ÷8
1 1 ÷12
FSEL_B[0:1]
2
FSEL_
B1 B0 QBx
0 0 ÷4
0 1 ÷6
1 0 ÷8
1 1 ÷10
FSEL_C[0:1]
2
FSEL_
C1 C0 QCx
0 0 ÷2
0 1 ÷4
1 0 ÷6
0
1 1 ÷8
1
INV_CLK ^Pullup
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
SYNC
FRZ
FSEL_FB[0:2]
3
FSEL_
FB2 FB1 FB0 QFB
0 0 0 ÷4
0 0 1 ÷6
0 1 0 ÷8
0 1 1 ÷10
1 0 0 ÷8
1 0 1 ÷12
1 1 0 ÷16
1 1 1 ÷20
FRZ_CLK ^Pullup
FRZ_DATA ^Pullup
OUTPUT DISABLE
CIRCUITRY
SYNC
FRZ
QA0
QA1
QA2
QA3
QB0
QB1
QB2
QB3
QC0
QC1
QC2
QC3
QFB
QSYNC
IDT™ / ICS™ LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER
3
ICS87973DYI-147 REV. A DECEMBER 9, 2008