General Description

The ICS843156 is a high frequency clock generator. The ICS843156

uses an external 25MHz crystal to synthesize 156.25MHz clock. The

ICS843156 has excellent cycle-to-cycle and RMS period jitter performance.

The ICS843156 operates at full 3.3V and 2.5V, or mixed 3.3V/2.5V

operating supplies and is available in a fully RoHS compliant 32-lead

VFQFN package

Features

• Ten differential LVPECL outputs of 156.25MHz

• Crystal oscillator interface designed for 18pF, 25MHz parallel

resonant crystal

• Cycle-to-cycle jitter: 40ps (maximum)

• RMS phase jitter at 156.25MHz (1.875MHz - 20MHz):

0.39ps (typical)

• Output Duty Cycle: 45 – 55

• Full 3.3V and 2.5V, or mixed 3.3V/2.5V supply modes

• 0°C to 70°C ambient operating temperature

• Available in lead-free (RoHS 6) package

• For drop-in replacement part use 843156