IDT FemtoClock® IDT8V89704I Clock Generator is a four output Clock Generator with LVPECL outputs. The IDT8V89704I can generate any one of four frequencies from a single crystal or reference clock. The four frequencies are selected from the Function Table by two frequency selection pins. Note the desired programmed frequencies must be used with the corresponding crystal. Excellent phase noise performance is maintained with IDT's Fourth Generation FemtoClock® NG PLL technology.