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/Output
3.3V/3.3V
3.3V/2.5V
3.3V/1.8V
2.5V/2.5V
2.5V/1.8V - -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
Description
The 83918I is a low skew, 1:18 Crystal-to- LVCMOS/LVTTL Fanout Buffer. The 83918I has selectable LVCMOS/LVTTL clock or crystal inputs. The low impedance LVCMOS/LVTTL outputs are designed to drive 50Ω series or parallel terminated transmission lines. The 83918I 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 83918I ideal for those clock distribution applications demanding well defined performance and repeatability.