8T49N287-011NLGI8

Universal Frequency Translator Dual 0.008MHz to 1000MHz 56Pin VFQFPN T/R

* Supports SDH/SONET and Synchronous Ethernet clocks including all FEC rate conversions * * Operating modes: locked to input signal, holdover and free-run * Initial holdover accuracy of ±50ppb * Accepts up to two LVPECL, LVDS, LVHSTL, HCSL or LVCMOS input clocks * Accepts frequencies ranging from 8kHz up to 875MHz * Auto and manual input clock selection with hitless switching * Clock input monitoring, including support for gapped clocks * Phase-Slope Limiting and Fully Hitless Switching options to control output phase transients * Operates from a 10MHz to 40MHz fundamental-mode crystal * Generates 8 LVPECL / LVDS / HCSL or 16 LVCMOS output clocks * Output frequencies ranging from 8kHz up to 1.0GHz diff * Output frequencies ranging from 8kHz to 250MHz LVCMOS * Four General Purpose I/O pins with optional support for status & control: * Four Output Enable control inputs may be mapped to any of the eight outputs * Lock, Holdover & Loss-of-Signal status outputs * Open-drain Interrupt pin * Nine programmable loop bandwidth settings for each PLL from 1.4Hz to 360Hz. * Optional Fast Lock function * Programmable output phase delays in steps as small as 16ps * Register programmable through I2C or via external I2C EEPROM * Bypass clock paths for system tests * Power supply modes * VCC / VCCA / VCCO * 3.3V / 3.3V / 3.3V * 3.3V / 3.3V / 2.5V * 3.3V / 3.3V / 1.8V LVCMOS * 2.5V / 2.5V / 3.3V * 2.5V / 2.5V / 2.5V * 2.5V / 2.5V / 1.8V LVCMOS * -40°C to 85°C ambient operating temperature * Package: 56QFN, lead-free RoHS 6