The 844S2416 is a 17 output, dual-PLL frequency synthesizer optimized to generate a variety of clocks for Ethernet, USB and other interfaces. Using a 25MHz 18pF parallel resonant crystal, the device will generate 24MHz, 25MHz, 100MHz and 200MHz clocks with mixed HCSL and LVCMOS/LVTTL levels.

The 844S2416 is packaged in a 56-pin VFQFN package that is optimum for applications with space limitations.


  • Two LVCMOS/LVTTL single-ended outputs at 24MHz
    Twelve LVCMOS/LVTTL single-ended outputs at 25MHz
    Two differential HCSL output pairs at 100MHz
    One differential HCSL output pair at 100MHz or 200MHz
  • Crystal oscillator interface: 25MHz
  • PLL1 – VCO: 2.4GHz
  • PLL2 – VCO range: 1.8GHz - 2.2GHz
    ±10% frequency margining in 1.25% steps
    Selectable spread spectrum – downspread at -0.5%
  • I2C control interface with address configuration pin and with default loading on release of active low reset
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package​




Design & Development