ICS83948I

LOW SKEW, 1-TO-12 DIFFERENTIALTO-LVCMOS/LVTTL FANOUT BUFFER General Description The ICS83948I is a low skew, 1-to-12 ICS Differential-to-LVCMOS/LVTTL Fanout Buffer and HiPerClockS™ a member of the HiPerClockS™ family of High Performance Clock Solutions from IDT. The ICS83948I has two selectable clock inputs. The CLK, nCLK pair can accept most standard differential input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive 50 series or parallel terminated transmission lines. The effective fanout can be increased from 12 to 24 by utilizing the ability of the outputs to drive two series terminated lines. The ICS83948I is characterized at full 3.3V core/3.3V output. Guaranteed output and part-to-part skew characteristics make the ICS83948I ideal for those clock distribution applications demanding well defined performance and repeatability. ICS83948I Features Twelve LVCMOS/LVTTL outputs Selectable differential CLK/nCLK or LVCMOS/LVTTL clock input CLK/nCLK pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL LVCMOS_CLK supports the following input types: LVCMOS, LVTTL Maximum output frequency: 250MHz Output skew: 350ps (maximum) Part-to-part skew: 1.5ns (maximum) 3.3V core, 3.3V output -40°C to 85°C ambient operating temperature Available in both standard (RoHS 5) and lead-free (RoHS 6) packages Block Diagram CLK_EN Pullup LVCMOS_CLK Pullup CLK Pullup...