Silicon Oscillators Easy to Use Programmable for Any Frequency Frequencies Programmable “On-the-Fly” Low Power Small Size Fast Start-Up High Shock, Vibration & Temperature Tolerant Accurate Solid-State Clocks for General Purpose and Switching Regulator Applications For systems subject to shock, vibration, acceleration or temperature extremes, Linear Technology’s silicon oscillators offer solid advantages over traditional crystal-based clocks. Using standard silicon fabrication and assembly techniques, you can forget about crystals, timing capacitors and long lead times. With fast start-up, low power consumption, small size and on-the-fly frequency programmability, Linear Technology’s silicon oscillators are suitable for almost any application. Fixed Frequency (No Trim Components Required) Device Output Frequency Accuracy Drift Max Temperature Supply Current LTC6905-xxx 20MHz to 133.3MHz 1% 40ppm/°C –40°C to 125°C 7mA to 10mA at fMAX LTC6930-xxx 32.768kHz to 8MHz 0.09% 20ppm/°C –40°C to 125°C 490µA at 8MHz General Purpose and Low Power Oscillators (Frequency Set with 1 Resistor) Device Output Frequency Accuracy Drift Max Temperature Supply Current LTC1799 1kHz to 33MHz 1.50% 40ppm/°C –40°C to 125°C 1mA at 3MHz LTC6900 1kHz to 20MHz 1.50% 40ppm/°C –40°C to 125°C 500µA at 3MHz LTC6905 17MHz to 170MHz 1.40% 20ppm/°C –55°C to 125°C 8mA at 100MHz LTC6906 10kHz to 1MHz 0.50% 50ppm/°C –40°C to 125°C 60µA at 1MHz LTC6907 40kHz to 4MHz 0.65% 50ppm/°C –40°C to 125°C 275µA at 4MHz Accuracy Max Temperature Supply Current Serially Programmable Oscillators Device Output Frequency Interface LTC6903 1kHz to 68MHz (0.1% Resolution) I 2C LTC6904 SPI –40°C to 125°C 1.10% –55°C to 125°C 3.6mA at 68MHz Multiphase Spread Spectrum Oscillators for Switching Regulators Device Output Frequency Outputs Phase-Shift Spread Spectrum Max Temperature LTC6902 5kHz to 20MHz 4 90°, 120°, 180° 0 to 100% (R-Set) –40°C to 85°C LTC6908-1/2 50kHz to 10MHz 2 90°, 180° 0 or ±10% (Fixed) –40°C to 125°C 12.5kHz to 6.67MHz 8 45° to 225° 0 or ±10% (Fixed) –40°C to 125°C LTC6909 LTC6930 99.91% Accurate Silicon Oscillators Excellent Frequency Accuracy Max Error: 0.09% (25°C) Max Error: 0.45% (0°C to 70°C) Max Error: 0.65% (–40°C to 85°C) 110μs Maximum Start-Up Time 1.7V to 5.5V Single Supply Operation 490μA Supply Current at 8MHz –40°C to 125°C Operation 2mm × 3mm DFN or MSOP-8 Package Short Lead Times Select & Set Up Silicon Oscillators Quickly & Easily 1.7V to 5.5V n n V+ n n OUT DIVA n n n n DIVB DIVC LTC6930 GND n n Silicon Oscillator Selection & Set-Up Tool Available at www.linear.com/osccalc L, LT, LTC, LTM, Linear Technology, the Linear logo and TimerBlox are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TimerBlox Universal Timing Devices Power On Internal Silicon Oscillator 2.25V to 5.5V Single Supply Programmed with 1 to 3 Resistors Fast Start-Up Time ±20mA Output Current LTC6990 60µA to 250µA Supply Current –40°C to 125°C Operation SOT-23 or 2mm × 3mm DFN Package LTC6991 LTC6992 PWM Control In Voltage Control In LTC6990 VCO LTC6991 µHz Clock LTC6992 PWM LTC6993 LTC6994 LTC6995 Trigger Trigger LTC6993 One-Shot LTC6994 Delay LTC6995 Long Timer The TimerBlox ® family is a complete set of versatile and simple timing circuits that combine an accurate silicon oscillator with precision circuitry and logic. No capacitors, no crystals, no microcontroller and no programming are required. TimerBlox devices are solid state and can be operated under high acceleration, vibration and temperature extremes. They offer higher accuracy, stability and lower power consumption than typical resistor/capacitor-based oscillators. Fully specified over the temperature range of –40°C to 125°C, the TimerBlox parts are suitable for demanding environments, and the small footprint is ideal for space-limited applications. Typical Circuit Examples LED Dimming Temperature to Frequency Power-On Reset Timer 5V VDIMMING MOD OE OUT LTC6992-1 GND V+ 5V OUT fOUT LTC6990 GND V+ RST OUT LTC6995-1 GND V+ 5V V+ 1M SET SET DIV DIV 118k 14 Set and Forget Timing Devices Part Number Function Details Operating Range LTC6991 LF Clock LTC6990 VCO Configurable Gain and Voltage Range Period from 1ms Up to 9.5 Hours 29µHz to 977Hz 0% to 100% Pulse Width Control 3.8Hz to 1MHz LTC6992-2 5% to 95% Pulse Width Control 3.8Hz to 1MHz 0% to 95% Pulse Width Control 3.8Hz to 1MHz LTC6992-4 5% to 100% Pulse Width Control 3.8Hz to 1MHz LTC6993-1 Rising Edge Trigger 1µs to 34s LTC6993-2 Rising Edge Trigger, Retriggerable 1µs to 34s Falling Edge Trigger 1µs to 34s LTC6993-4 Falling Edge Trigger, Retriggerable 1µs to 34s LTC6994-1 Rising or Falling Edge Trigger 1µs to 34s Rising and Falling Edge Trigger 1µs to 34s Active High Reset Input 1ms to 9.5hrs Active Low Reset Input 1ms to 9.5hrs LTC6992-3 LTC6993-3 LTC6994-2 LTC6995-1 LTC6995-2 One-Shot Delay Long Timer DIV 392k Select & Set Up TimerBlox Parts Quickly & Easily 488Hz to 2MHz LTC6992-1 PWM SET 0.1µF Power On TimerBlox Selection and Set-Up Tool Available at www.linear.com/timerblox 2011 WINNER www.linear.com n 1-800-4-LINEAR 1115B