概览
描述
The 844004I-104 is a 4 output LVDS synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the two frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz. The 844004I-104 uses our third generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The 844004I-104 is packaged in a 32-pin VFQFN package.
特性
- Four differential LVDS outputs
- Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input
- Supports the following output frequencies: 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz
- VCO range: 560MHz - 680MHz
- RMS phase jitter at 212.5MHz (637kHz – 10MHz), using a 26.5625MHz crystal: <1ps (typical)
- Full 3.3V or 2.5V output supply modes
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
产品对比
应用
设计和开发
模型
ECAD 模块
点击产品选项表中的 CAD 模型链接,查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用,可直接在 SamacSys 请求该符号或模型。

产品选项
当前筛选条件