83918

Low Skew, 1:18 Crystal-to-LVCMOS/LVTTL Fanout Buffer 83918 Data Sheet General Description The 83918 is a low skew, 1:18 Crystal-to- LVCMOS/LVTTL Fanout Buffer. The 83918 has selectable LVCMOS/LVTTL clock or crystal inputs. The low impedance LVCMOS/LVTTL outputs are designed to drive 50 series or parallel terminated transmission lines. The 83918 is characterized at full 3.3V, full 2.5V and mixed 3.3V/2.5V, 3.3V/1.8V, and 2.5V/1.8V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the 83918 ideal for those clock distribution applications demanding well defined performance and repeatability. Features Eighteen LVCMOS/LVTTL output Selectable crystal oscillator interface or LVCMOS_CLK Maximum output frequency: 200MHz Crystal input frequency range: 10MHz to 40MHz RMS phase jitter using a 25MHz crystal (1kHz – 1MHz): 0.449ps (typical) @ 3.3V/3.3V Output skew: 75ps (maximum) @ 3.3V/3.3V Operating supply modes: Core/Ou...