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Crystal-to-LVPECL/LVDS Clock Synthesizer
849S625
Data Sheet
General Description
Features
The 849S625 is a high frequency clock generator. The 849S625 uses an external 25MHz crystal to synthesize 625MHz, 312.5MHz, 156.25MHz and 125MHz clocks. The 849S625 has excellent cycle-to-cycle and RMS phase jitter performance. The 849S625 operates at full 3.3V supply mode and is available in a fully RoHS compliant 48-lead TQFP, E-Pad package.
Frequency Table for Bank A, B and C Outputs
• Ten selectable differential LVPECL or LVDS outputs • Output frequencies of 625MHz, 312.5MHz, 156.25MHz or
125MHz using a 25MHz crystal.
• Crystal interface designed for a 25MHz, parallel resonant crystal • Cycle-to-cycle jitter: 25ps (maximum) • RMS phase jitter at 156.25MHz (1MHz - 20MHz):
0.
849S625 Datasheet
