FEATURES
• Two LVCMOS/LVTTL outputs, 17Ω impedance
Each output supports independent frequency selection at
25MHz, 62.5MHz, 125MHz, and 156.25MHz
• Two differential inputs support the following input types:
LVPECL, LVDS, LVHSTL, SSTL, HCSL
• Accepts input frequencies from 8kHz to 155.52MHz including
8kHz, 1.544MHz, 2.048MHz, 19.44MHz, 25MHz, 77.76MHz,
125MHz and 155.52MHz
• Attenuates the phase jitter of the input clock by using a lowcost
pullable fundamental mode VCXO crystal
• VCXO PLL bandwidth can be optimized for jitter attenuation
and reference tracking using external loop filter connection
• FemtoClock frequency multiplier provides low jitter, high
frequency output
• Absolute pull range: ±50ppm
• FemtoClock VCO frequency: 625MHz
• RMS phase jitter @ 125MHz, using a 25MHz crystal
(12kHz - 20MHz): 1.1ps (typical)
• 3.3V supply voltage
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) package