General Description
   The XR81411 is a Quad Clock synthesizer with 4 independent PLLs in a compact LGA-45 package. Each synthesizer generates ANY frequency in the range of 10 MHz to 800MHz by utilizing a highly flexible delta sigma modulator and a wide ranging VCO. The outputs are independently configurable for single ended LVCMOS or differential LVDS or LVPECL. The clock outputs have very low typical phase noise jitter of sub 0.6ps RMS, while consuming extremely low power. The XR81411 uses a single reference and provides 4 independent outputs that can be configured as needed to support a wide variety of applications.

FEATURES
• Small footprint 5mm x 5mm LGA package
• Configurable Outputs - As differential LVPECL/
   LVDS pair or as a single ended LVCMOS.
• Crystal oscillator interface which can also be
   overdriven using a single-ended reference clock
• Output frequency range: 10MHz - 800MHz
• Crystal/input frequency: 10MHz to 60MHz, parallel resonant crystal
• VCO range: 2GHz - 3GHz
• Phase jitter @
   - 125MHz (12KHz - 20MHz): <0.6ps RMS
   - 125MHz (1.875MHz -20MHz): <0.25ps RMS
• 3.3V or 2.5V operating supply
• -40°C to 85°C ambient operating temperature
• Lead-free (RoHS 6) package

APPLICATIONS
• 10GE, GE LAN/WAN
• 2.5G/10G SONET/SDH/OTN
• xDSL, PCIe
• Low-jitter Clock Generation
• Synchronized clock systems