特長
- Two differential LVPECL output pairs
- Crystal oscillator interface designed for a 25MHz, 18pF parallel resonant crystal
- A 25MHz crystal generates output frequencies of: 156.25MHz and 125MHz
- VCO frequency: 625MHz
- RMS Phase Jitter @ 156.25MHz, (1.875MHz – 20MHz) using a 25MHz crystal: 0.54ps (typical)
- Full 3.3V supply mode
- 0°C to 70°C ambient operating temperature
- Available in lead-free (RoHS 6) package
説明
The 843252-45 is a 2 LVPECL output synthesizer optimized to generate Ethernet reference clock frequencies. Using a 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated: 156.25MHz and 125MHz. The 843252-45 uses our 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843252-45 is packaged in a small 16-pin TSSOP package.