Features

• 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)

• Output supply voltage modes:

VCC/VCCA/VCCO

3.3V/3.3V/3.3V

3.3V/3.3V/2.5V (LVPECL only)

2.5V/2.5V/2.5V

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

• Available in lead-free (RoHS 6) package