ICS8701I Datasheet, PDF (11/13 Pages) Integrated Circuit Systems – LOW SKEW ÷1, ÷2 CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
ICS8701I
LOW SKEW ¸1, ¸2
CLOCK GENERATOR
FIGURE 3C, 3D - SKEW DEFINITIONS & WAVEFORMS
Multiple Frequency Skew - Skew between banks of outputs operating at different frequencies. Outputs operating at the
same temperature, supply voltages and with equal load conditions.
CLK
QA0 - QA4,
QB0 - QB4,
QC0 - QC4,
or
QD0 - QD4
in ÷1
VDDO/2
tsk(w)
VDDO/2
tsk(w)
QA0 - QA4,
QB0 - QB4,
QC0 - QC4,
or
QD0 - QD4
in ÷2
VDDO/2
FIGURE 3C - MULTIPLE FREQUENCY SKEW
fin = 200MHz, Vamp = 3.3V, tr = tf = 200ps
VDDO/2
Part to Part Skew - Skew between outputs of any bank on different parts. Outputs operating at the same temperature, supply
voltages and with equal load conditions.
CLK
PART 1 QA0 - QA4
QB0 - QB4
QC0 - QC4
QD0 - QD4
8701I
PART 2 QA0 - QA4
QB0 - QB4
QC0 - QC4
QD0 - QD4
VDDO/2
tsk(p)
VDDO/2
VDDO/2
tsk(p)
VDDO/2
FIGURE 3B - OUTPUT SKEW
fin = 200MHz, Vamp = 3.3V, tr = tf = 200ps
www.icst.com/products/hiperclocks.html
11
REV. A MARCH 16, 2001