IDT8T49N524I

Programmable FemtoClock® NG LVPECL/LVDS Dual 4-Output Fractional Clock Generator IDT8T49N524I DATA SHEET General Description The IDT8T49N524I is an eight output programmable any-rate dual clock generator with selectable LVDS or LVPECL outputs. Both clock generators use Fractional Output Dividers to be able to generate output frequencies that are independent of each other and independent of the input frequency. Output frequencies for both clock generators are generated from a single crystal or reference clock. Clock Generator A supports three different factory-programmed default frequencies that can be selected from using only the FSEL control pins. Alternatively any desired output frequency can be programmed over the I2C serial port. The chosen output frequency is then driven out the QA0 to QA3 outputs. Clock Generator B supports a single factory-programmed default frequency. It can also be programmed for any output frequency via the serial port. The output frequency is driven out t...