The LTC6909 is an easy-to-use precision oscillator that provides 1, 2, 3, 4, 5, 6, 7, or 8 phase sync outputs. The LTC6909 also provides Spread Spectrum Modulation (SSFM) to enable this circuit to improve electromagnetic compatibility (EMC) performance.
LTC6909 package
MS-16
Typical Application
Eight separate outputs provide up to eight rail-to-rail, 50% duty cycle clock signals. The output is configured with 3 logic inputs for phase separation from 45° to 120° (3 to 8 phases). It is also possible to keep the clock output low or configure it to be high impedance. A single resistor is combined with the phase configuration to set the output frequency according to the following formula:
fOUT=20MHz•10k/(RSET•PH)
Wherein PH = 3, 4, 5, 6, 7, or 8.
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