Recommended Application:

ATI RS790 systems using AMD K8 processors

Output Features:

• 2 - Greyhound compatible K8 CPU pair

• 6 - low-power differential SRC pairs

• 2 - low-power differential SouthBridge SRC pairs

• 4 - low-power differential ATIG pairs

• 1 - Selectable low-power differential 100MHz nonspread

SATA/ SRC output

• 1 - Selectable 100MHz low-power differential/ 66 MHz

single-ended HTT clock

• 2 - 48MHz USB clock

• 3 - 14.318MHz Reference clock

Key Specifications:

• CPU outputs cycle-to-cycle jitter < 85ps

• SRC outputs cycle-to-cycle jitter < 125ps

• ATIG outputs cycle-to-cycle jitter < 125ps

• +/- 300ppm frequency accuracy on CPU, SRC & ATIG

clocks

Features/Benefits:

• CPU, ATIG, SB_SRC and SRC outputs are

independently programmable for frequency

• Spread Spectrum for EMI reduction

• Outputs may be disabled via SMBus

• External crystal load capacitors for maximum

frequency accuracy

• Meets PCIEX Gen2 specifications