
Integrated Circuit Systems
Recommended Application:
CK-408 clock for Almador-M and Brookdale-Mobile
chipsets. Programmable for group to group skew
Output Features:
• 3 Differential CPU Clock Pairs (differential current
mode)
• 7 PCI (3.3V) @ 33.3MHz
• 3 PCI_F (3.3V) @ 33.3MHz
• 1 USB (3.3V) @ 48MHz
• 1 DOT (3.3V) @ 48MHz
• 1 REF (3.3V) @ 14.318MHz
• 1 3V66 (3.3V) @ 66.6MHz
• 1 VCH/3V66 (3.3V) @ 48MHz or 66.6MHz
• 3 66MHz_OUT/3V66 (3.3V) @ 66.6MHz_IN
or 66.6MHz
• 1 66MHz_IN/3V66 (3.3V) @ Input/66MHz
FEATUREs:
• Almador Chipset has a DLL driving the clock buffer
path for the 3 buffer path 66.6 MHz outputs,
66Buf(0:2). Almador board level designs MUST
use pin 22, 66Buf_1, as the feedback connection
from the clock buffer path to the Almador
(GMCH) chipset.
• Supports spread spectrum modulation,
down spread 0 to -0.5%.
• Efficient power management scheme through PD#,
CPU_STOP# and PCI_STOP#.