General Description
The ICS8430S803I is a PLL-based clock generator specifically
designed for Cavium Networks SoC processors. This high
performance device is optimized to generate the processor core
reference clock, the DDR reference clocks, the PCI/PCI-X bus
clocks, and the clocks for both the Gigabit Ethernet MAC and PHY.
The clock generator offers low-jitter, low-skew clock outputs, and
edge rates that easily meet the input requirements for the
CN30XX/CN31XX/CN38XX/CN58XX processors. The output
frequencies are generated from a 25MHz external input source or an
external 25MHz parallel resonant crystal. The extended temperature
range of the ICS8430S803I supports telecommunication,
networking, and storage requirements.

Features
• One selectable differential output pair for DDR 533/400/667,
LVPECL, LVDS interface levels
• Nine LVCMOS/ LVTTL outputs, 23Ω typical output impedance
• Selectable external crystal or differential input source
• Crystal oscillator interface designed for 25MHz, parallel resonant
crystal
• Differential input pair (PCLK, nPCLK) accepts LVPECL, LVDS,
CML, input levels
• Internal resistor bias on nPCLK pin allows the user to drive PCLK
input with external single-ended (LVCMOS/ LVTTL) input levels
• Power supply modes:
CORE / OUTPUT
3.3V / 3.3V LVDS, LVPECL, LVCMOS
3.3V / 2.5V LVCMOS
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) package