Spread-Spectrum Clock Generators

The MAX31C80/MAX31D80 are spread-spectrum clock generators that contain a phase-locked loop (PLL) that generates a 2MHz to 134MHz clock from an input clock or crystal. The PLL can provide a spread-spectrum down-dithered (MAX31D80) or center-dithered (MAX31C80) frequency-modulated clock. The devices also buffer the incoming clock and provide this output on a separate pin.

The MAX31C80/MAX31D80 are provided in a 10-pin TDFN package and operate over a full -40°C to +125°C automotive temperature range. Devices can be factory programmed for multiple combinations of input and output frequencies (see the Ordering Information table). A low-cost, low-frequency crystal can be used at the input to generate frequencies up to 134MHz.

Applications

* Automotive Infotainment * Graphics Cards * Printers * Set-Top Boxes

* 2MHz to 134MHz Spread-Spectrum Clock Generator

* Input Can Be Either an 8MHz to 34MHz Crystal or 8MHz to 134MHz Clock

* Factory-Programmable Output Frequencies in 2MHz to 134MHz Range

* Low-Cost Crystal at Low Frequency Used to Generate High Frequencies

* On-Board PLL is Capable of Spread-Spectrum Frequency Modulation

* Down- or Center-Dither Spread-Spectrum Frequency Modulation

* User-Configurable Spread-Spectrum Dither Magnitude

* Low Cycle-to-Cycle Jitter

* 3.3V Supply Voltage

* Temperature Range: -40°C to +125°C

* Small Package: 10-Pin TDFN (3mm x 3mm x 0.8mm)