GENERAL DESCRIPTION

The 843011 is a Fibre Channel Clock Generator.

The 843011 uses a 26.5625MHz crystal to synthesize

106.25MHz or a 25MHz crystal to synthesize 100MHz. The

843011 has excellent <1ps phase jitter performance, over the

637kHz – 10MHz integration range. The 843011 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 26.5625MHz

18pF parallel resonant crystal

• Output frequency: 106.25MHz or 100MHz

• VCO range: 560MHz - 680MHz

• RMS phase jitter @ 100MHz, using a 25MHz crystal

(637kHz - 10MHz): 0.80ps (typical)

• RMS phase noise at 106.25MHz

Phase noise:

Offset Noise Power

100Hz ................-92.8 dBc/Hz

1kHz ..............-119.6 dBc/Hz

10kHz ..............-129.5 dBc/Hz

100kHz ..............-130.5 dBc/Hz

• 3.3V operating supply

• Available in lead-free (RoHS 6) package

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