ICS849N212I中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

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