NB3N508S 3.3V, 216 MHz PureEdge VCXO Clock Generator with MLVDS Output Description NB3N508S V DD X1 CLK 27 MHz VCXO Phase Charge MLVDS Crystal VCO Detector Pump Output X2 CLK V IN N GND Figure 1. NB3N508S Simplified Logic Diagram *For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.