LTC6908-1

LTC6908-1/LTC6908-2 Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation FEATURES n LTC6908-1: Complementary Outputs (0°/180°) n LTC6908-2: Quadrature Outputs (0°/90°) n 50kHz to 10MHz Frequency Range n One External Resistor Sets the Frequency n Optional Spread Spectrum Frequency Modulation for Improved EMC Performance n ±10% Frequency Spreading n 400µA Supply Current Typical (V+ = 5V, 50kHz) n Frequency Error ≤1.5% Max (TA = 25°C, V+ = 3V) n ±40ppm/°C Temperature Stability n Fast Start-Up Time: 260µs Typical (1MHz) n Outputs Muted Until Stable n Operates from a Single 2.7V to 5.5V Supply n Available in Low Profile (1mm) ThinSOT and DFN (2mm × 3mm) Packages n AEC-Q100 Qualified for Automotive Applications APPLICATIONS n Switching Power Supply Clock Reference n Portable and Battery-Powered Equipment n Precision Programmable Oscillator n Charge Pump Driver DESCRIPTION The LTC®6908 is an easy-to-use precision oscillator that provides 2-outputs, shifted by either 180° or 90°. The oscillator frequency is programmed by a single external resistor (RSET) and spread spectrum frequency modulation (SSFM) can be activated for improved electromagnetic compatibility (EMC) performance. The LTC6908 operates with a single 2.7V to 5.5V supply and provides rail-to-rail, 50% duty cycle square wave outputs. A single resistor from 10k to 2M is used to select an oscillator frequency from 50kHz to 10MHz (5V supply). The oscillator can be easily programmed using the simp...