The ICS8427-02 is a general purpose, six LVHSTL output high frequency synthesizer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. It supports a very wide output frequency range of 15.625MHz to 500MHz. The device powers up at a default output frequency of 200MHz with a 16.6667MHz crystal interface, and the frequency can then be changed using the serial programming interface to change the M feedback divider and N output divider. Frequency steps as small as 125kHz can be achieved using a 16.6667MHz crystal and the output divider set for ÷16. The low jitter and frequency range of the ICS8427-02 make it an ideal clock generator for most clock tree applications.
The ICS8427-02 is a general‑purpose, six‑output LVHSTL frequency synthesizer from the HiPerClocks™ family. It supports an output frequency range from 15.625 MHz up to 500 MHz and powers up by default to 200 MHz when used with a 16.6667 MHz crystal. Frequency can be programmed via a serial interface that adjusts the M feedback divider and N output divider.
Key features include six differential LVHSTL outputs, selectable crystal or TEST_CLK input, SSC support, maximum output skew of 100 ps, and cycle‑to‑cycle jitter of 50 ps. The device operates from a 2.5 V core and 1.8 V output supply and is rated for 0 °C to 70 °C ambient temperature.
| Output frequency range | 15.625 MHz to 500 MHz |
|---|---|
| VCO frequency range | 250 MHz to 500 MHz |
| Output skew (max) | 100 ps |
| Cycle‑to‑cycle jitter (max) | 50 ps |
| Core supply voltage | 2.5 V |
| Output supply voltage | 1.8 V |
| Ambient operating temperature | 0 °C to 70 °C |
| Power supply current | 175 mA |
The device powers up at a default output frequency of 200 MHz when a 16.6667 MHz crystal is used.
The output frequency can be changed via the serial programming interface by adjusting the M feedback divider and N output divider.
The IC provides six differential LVHSTL outputs.
The maximum cycle‑to‑cycle jitter is 50 ps.