特性
- Six LVPECL outputs
- Crystal oscillator interface
- VCO range: 490MHz to 680MHz
- Crystal input frequency range: 25MHz to 33.333MHz
- RMS phase jitter at 125MHz, using a 25MHz crystal (1.875MHz to 20MHz): 0.41ps (typical)
- Full 3.3V or 3.3V core, 2.5V output supply mode Core/Output 3.3V/3.3V 3.3V/2.5V
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
843246I - Block Diagram
描述
The 843246I is a Crystal-to-3.3V LVPECL Clock Synthesizer/Fanout Buffer designed for Fibre Channel and Gigabit Ethernet applications. The output frequency can be set using the frequency select pins and a 25MHz crystal for Ethernet frequencies, or a 26.5625MHz crystal for a Fibre Channel. The low phase noise characteristics of the 843246I make it an ideal clock for these demanding applications.
