DESCRIPTION

· The LTC6908 is a precision oscillator providing two outputs, phase-shifted by either 180° or 90°.
· Frequency is set by a single external resistor (RSET), ranging from 10k to 2M, for output frequencies from 50kHz to 10MHz.
· It features Spread Spectrum Frequency Modulation (SSFM) to enhance electromagnetic compatibility (EMC).
· Operates on a single supply voltage from 2.7V to 5.5V, delivering rail-to-rail, 50% duty cycle square wave outputs.

FEATURES

· Frequency range from 50kHz to 10MHz.
· Single resistor frequency setting.
· Optional SSFM with ±10% frequency spreading.
· Low supply current of 400µA typical at 5V, 50kHz.
· Maximum frequency error of ≤1.5% at 25°C, 3V.
· Temperature stability of ±40ppm/°C.
· Fast start-up time of 260µs typical at 1MHz.
· Outputs muted until stable.
· Available in ThinSOT and DFN packages.
· AEC-Q100 qualified for automotive applications.

APPLICATIONS

· Switching power supply clock reference.
· Portable and battery-powered equipment.
· Precision programmable oscillator.
· Charge pump driver.