Date: 15/06/2010

New spread-spectrum clock generators from Maxim deliver 2MHz to 134MHz

Maxim has introduced the MAX31C80/MAX31D80 spread-spectrum generators, which it claims provide best-in-class EMI peak-noise reduction. These generators also offer the designer flexibility to use any clock frequency or crystal to achieve the desired output frequency. This device uses a PLL with low jitter of less than 75ns to provide a 2MHz to 134MHz output, regardless of crystal or clock input. The device consists of the crystal oscillator, buffered oscillator output, programmable fractional PLL, and spread-spectrum generator. It is suggested for driving microprocessors, memory, and bus clocking, which generate large EMI peaks at specific frequencies.

The MAX31C80/MAX31D80 provide a buffered clock-reference output for driving communications where the spread-spectrum output is unacceptable. By combining the crystal oscillator and buffered clock output with the factory-programmable, spread-spectrum output, these clock generators are the only clocking devices that many systems need.

Package: 3mm x 3mm x 0.8mm, 10-pin TDFN

Operating temperature range: 40°C to +125°C

Price: begins at US$1.51

For more information visit: www.maxim-ic.com