843204I-01中文資料瑞薩數據手冊PDF規(guī)格書

GENERAL DESCRIPTION

The 843204I-01 is a 4 output LVPECL Synthe-sizer optimized

to generate Gigabit Ethernet and SONET reference clock

frequencies and is a member of the HiPerClocksTM family

of high performance clock solutions from IDT. Using

a 19.44MHz and 25MHz, 18pF parallel resonant crystal,

155.52MHz and 156.25MHz frequencies can be generated.

The 843204I-01 uses IDT’s FemtoClockTM low phase noise VCO

technology and can achieve 1ps or lower typical RMS phase jitter.

FEATURES

? Four 3.3V LVPECL outputs

? Selectable crystal oscillator interface or clock inputs

? Supports the following output frequencies: 155.52MHz

and 156.25MHz

? VCO range: 560MHz - 680MHz

? RMS phase jitter @ 155.52MHz, using a 19.44MHz crystal

(12kHz - 13MHz): 0.6ps (typical)

? RMS phase jitter @ 156.25MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.7ps (typical)

? Full 3.3V supply mode

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

? Available in lead-free (RoHS 6) package

? For functional replacement part us 8T49N285