8T49N285 Description
The 8T49N285 has a fractional-feedback PLL that can be used as a jitter attenuator or frequency translator. It is equipped with six integer and two fractional output dividers, allowing the generation of up to 8 different output frequencies, ranging from 8kHz to 1GHz. Three of these frequencies are pletely independent of each other and the inputs.
8T49N285 Key Features
- Supports SDH/SONET and Synchronous Ethernet clocks
- <0.3ps RMS typical jitter (including spurs),12kHz to 20MHz
- Operating modes: locked to input signal, holdover and free-run
- Initial holdover accuracy of ±50ppb
- Accepts two LVPECL, LVDS, LVHSTL, HCSL or LVCMOS
- Accepts frequencies ranging from 8kHz up to 875MHz
- Auto and manual input clock selection with hitless switching
- Clock input monitorin
8T49N285 Applications
- OTN or SONET / SDH equipment Line cards (up to OC-192, and