The LTC® 6905-XXX series of parts are precision, fixed frequency, silicon oscillators designed to minimize board space while maximizing accuracy and ease of use. Programmed at the factory to a fixed frequency, the LTC6905-XXX series of parts need no external trim components. An internal three-state divider allows for division of the master clock by 1, 2 or 4, providing 3 frequencies
(for each device).
The LTC6905-XXX series operate with a single 2.7V to 5.5V power supply and provide a rail-to-rail, 50% duty cycle, square wave output. The OE pin will disable the output when brought low and synchronously enable the output when brought high, avoiding pulse slivers.
FEATURES
■ No External Components to Set Frequency
■ Frequency Error ±0.5% Typical
■ Fast Start-Up Time: 100µs Typical
■ ±20ppm/°C Temperature Stability
■ Output Enable Provided
■ Includes Divide by 1, 2 or 4
■ Rise Time: 0.5ns, CL= 5pF
■ Timing Jitter: <0.8% Typical
■ 50% ±2.5% Duty Cycle
■ IS= 8mA Typical (fOSC= 100MHz, CL = 5pF)
■ CMOS Output Drives 600ΩLoad
■ Single Supply 2.7V to 5.5V
■ Low Profile (1mm) ThinSOTTM Package
APPLICATIONS
■ Data Clocks for High Reliability Applications
■ High Vibration, High Acceleration Environments
■ Replacement for Fixed Crystal and Ceramic Oscillators
