GENERAL DESCRIPTION

The 843031-01 is an 10Gb Ethernet Clock Generator and a

member of the family of high performance devices from IDT. The

843031-01 uses an 18pF parallel resonant crystal. The 843031-01

has excellent <1ps phase jitter performance, over the 1.875MHz

- 20MHz integration range. The 843031-01 is packaged in a small

8-pin TSSOP, making it ideal for use in systems with limited board

space.

FEATURES

• One differential 3.3V or 2.5V LVPECL output

• Crystal oscillator interface designed for 25MHz,

18pF parallel resonant crystal

• Output frequencies: 280MHz – 340MHz

• VCO range: 560MHz - 680MHz

• RMS phase jitter @ 312.5MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.46ps (typical)

• Full 3.3V or 2.5V operating supply

• 0°C to 70°C ambient operating temperature

• Available in lead-free (RoHS 6) package