General Description

The 843051 is a Gigabit Ethernet Clock Generator. The 843051 can

synthesize 10 Gigabit Ethernet, SONET, or Serial ATA reference

clock frequencies with the appropriate choice of crystal and output

divider. The 843051 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

crystals

• RMS phase jitter at:

155.52MHz (12kHz – 20MHz): 0.74ps (typical)

156.25MHz (1.875MHz – 20MHz): 0.43ps (typical)

161.13MHz (1.933Hz – 20MHz): 0.43ps (typical)

Offset Noise Power

• 100Hz -95 dBc/Hz

1kHz -110 dBc/Hz

10kHz -125 dBc/Hz

100kHz -125 dBc/Hz

• Full 3.3V output supply mode

• 0°C to 70°C ambient operating temperature

• Available in lead-free (RoHS 6) package