843251-04中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

General Description

The 843251-04 is a 10Gb/12Gb Ethernet Clock Generator. The

843251-04 can synthesize 10 Gigabit Ethernet and 12 Gigabit

Ethernet with a 25MHz crystal. It can also generate SATA and 10Gb

Fibre Channel reference clock frequencies with the appropriate

choice of crystals. The 843251-04 has excellent phase jitter

performance and is packaged in a small 8-pin TSSOP, making it

ideal for use in systems with limited board space.

Features

? One differential 3.3V LVPECL output

? Crystal oscillator interface designed for

18pF parallel resonant crystal

? Crystal input frequency range: 19.33MHz – 30MHz

? Output frequency range: 145MHz – 187.5MHz

? VCO range: 580MHz – 750MHz

? RMS phase jitter @ 156.25MHz, (1.875MHz – 20MHz):

0.39ps (typical)

? Full 3.3V supply mode

? 0°C to 70°C ambient operating temperature

? Available in lead-free (RoHS 6) package