特性
- Two 3.3V LVPECL outputs
- Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input
- Supports the following output frequencies: 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz
- VCO range: 560MHz - 680MHz
- RMS phase jitter (637kHz - 10MHz): 0.72ps (typical)
- Typical phase noise at 212.5MHz
Phase noise:
Offset Noise Power
100Hz ................. -87.7 dBc/Hz
1KHz .................. -111.6 dBc/Hz
10KHz ................ -124.3 dBc/Hz
100KHz .............. -124.3 dBc/Hz - Full 3.3V supply mode
- Lead-Free package RoHS compliant
- -30°C to 85°C ambient operating temperature
描述
The 843002 is a 2 output LVPECL synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz, and 53.125MHz. The 843002 uses our 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The 843002 is packaged in a small 20-pin TSSOP package.