GENERAL DESCRIPTION
The ICS8440259D-05 is a 9 output synthesizer optimized to
generate Gigabit and 10 Gigabit Ether-net. Using a 25MHz, 18pF
parallel resonant crystal, the device will generate 125MHz and
3.90625MHz clocks with mix-ed LVDS and LVCMOS/LVTTL output
levels. The ICS8440259D-05 uses IDT’s 3rd generations low phase
noise VCO technology and can achieve <1ps typical rms phase jitter,
easily meeting Ethernet jitter requirements. The ICS8440259D-05
is packaged in a small, 32-pin VFQFN package that is optimum for
applications with space limitations.

FEATURES
• Five differential LVDS outputs at 125MHz
Three LVCMOS/LVTTL single-ended outputs at 125MHz
One LVCMOS/LVTTL single-ended output at 3.90625MHz
• Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input and PLL bypass from a single select pin
• VCO range: 510MHz - 650MHz
• RMS phase jitter @ 125MHz, using a 25MHz crystal
(1.875MHz - 20MHz): 0.41ps (typical)
• Full 3.3V supply mode
• 0°C to 70°C ambient operating temperature
• Available in lead-free (RoHS 6) package