LTC6909C Datasheet - Linear Technology

DESCRIPTION
The LTC®6909 is an easy to use precision oscillator that can provide 1-, 2-, 3-, 4-, 5-, 6-, 7- or 8-phase synchronized outputs. The LTC6909 also offers spread spectrum frequency modulation (SSFM), which can be enabled to improve electromagnetic compatibility (EMC) performance.

FEATURES
■ 1-, 2-, 3-, 4-, 5-, 6-, 7- or 8-Phase Outputs
■ One External Resistor Sets the Output Frequency from 12.5kHz to 6.67MHz
■ Optional Spread Spectrum Frequency for Improved EMI Performance
■ ±10% Frequency Spreading
■ Outputs Can Be Held Low or Floated (Hi-Z)
■ Three Spread Spectrum Modulation Rates fOUT/16, fOUT/32 and fOUT/64
■ 400μA Supply Current
■ Operates from a Single 2.7V to 5.5V Supply
■ Fast Start-Up Time
■ First Cycle Accurate
■ Outputs Are High Impedance Until Frequency Settles
■ MS16 Package

APPLICATIONS
■ Synchronizing Multiple Switching Power Supplies