特長
- Fully integrated PLL
- 4 differential 3.3V or 2.5V LVPECL outputs
- Selectable crystal oscillator interface or LVCMOS TEST_CLK input
- Output frequency range: 62.5MHz to 350MHz
- VCO range: 250MHz to 700MHz
- Parallel interface for programming counter and output dividers during power-up
- Serial 3 wire interface
- Cycle-to-cycle jitter: 23ps (typical)
- Output skew: 16ps (typical)
- Output duty cycle: 49% < odc < 51%, fout <= 125MHz
- Full 3.3V or mixed 3.3V core, 2.5V operating supply
- Lead-Free package available
- 0°C to 85°C ambient operating temperature
84314 - Block Diagram
説明
The 84314 is a general purpose quad output frequency synthesizer. When the device uses parallel loading, the M bits are programmable and the output divider is hard-wired for divide by 2 thus providing a frequency range of 125MHz to 350MHz. In serial programming mode, the M bits are programmable and the output divider can be set for either divide by 2 or divide by 4, providing a frequency range of 62.5MHz to 350MHz. The low cycle-cycle jitter and broad frequency range of the 84314 make it an ideal clock generator for a variety of demanding applications which require high performance.
