849N212CKI-007LF Datasheet PDF - Integrated Device Technology

● Fourth generation FemtoClock® NG technology

● Universal Frequency Translator/Frequency Synthesizer

● Two outputs

● One programmable as LVPECL or LVDS

● One LVCMOS

● Both outputs may be set to use 2.5V or 3.3V output levels

● Programmable output frequency: 1.0MHz to 250MHz

● Two differential inputs support the following input types: LVPECL, LVDS, LVHSTL, HCSL

● Input frequency range: 8kHz - 710MHz

● Crystal input frequency range: 16MHz - 40MHz

● Two factory-set register configurations for power-up default state

● Power-up default configuration pin or register selectable

● Configurations customized via One-Time Programmable ROM

● Settings may be overwritten after power-up via I2C

● I2C Serial interface for register programming

● RMS phase jitter at 125MHz, using a 40MHz crystal (12kHz - 20MHz): 558fs (typical), Low Bandwidth Mode (FracN)

● RMS phase jitter at 125MHz, using a 100MHz input clock (12kHz - 20MHz) 388fs (typical), High Bandwidth Mode (Integer FB)

● -40°C to 85°C ambient operating temperature

● Available in lead-free (RoHS 6) package