LTC6906 Micropower, 10kHz to 1MHz Resistor Set Oscillator in SOT-23 FEATURES DESCRIPTION n Supply Current: 12A at 100kHz The LTC 6906 is a precision programmable oscillator that n <0.65% Frequency Accuracy (from 0C to 70C) is versatile, compact and easy to use. Micropower opera- n Frequency Range: 10kHz to 1MHz tion benefits portable and battery-powered equipment. At n One Resistor Sets the Oscillator Frequency 100kHz, the LTC6906 consumes 12A on a 3.3V supply. n Single Supply: 2.25V to 5.5V A single resistor programs the oscillator frequency over n 40C to 125C Operating Temperature Range a 10:1 range with better than 0.5% initial accuracy. The n No Decoupling Capacitor Needed output frequency can be divided by 1, 3 or 10 to span a n Start-Up Time Under 200s at 1MHz 100:1 total frequency range, 10kHz to 1MHz. n First Cycle After Power-Up is Accurate n The LTC6906 is easily programmed according to this 150 CMOS Output Driver n simple formula: Low Profile (1mm) SOT-23 (ThinSOT) Package + DIV Pin = V 10, 1MHz 100k APPLICATIONS = ,N = 3, DIV Pin = Open OUT N R n SET Low Cost Precision Programmable Oscillator 1, DIV Pin = GND n Rugged, Compact Micropower Replacement for Crystal and Ceramic Oscillators No decoupling capacitor is needed in most cases, yield- n High Shock and Vibration Environments ing an extremely compact solution occupying less than n Portable and Battery-Powered Equipment 20mm2. Contact LTC Marketing for a version of the part n PDAs and Cellular Phones with a shutdown feature or lower frequency operation. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property The LTC6906 is available in the 6-lead SOT-23 (ThinSOT) of their respective owners. package. TYPICAL APPLICATION Micropower Clock Generator Typical Supply Current vs Frequency 90 C = 5pF L NO DECOUPLING 80 T = 25C A CAPACITOR 70 NEEDED + 10kHz TO 1MHz V = 3.6V LTC6906 60 + 2.25V TO 3.6V V OUT 50 GND GRD + 10 V = 2.25V 40 3 DIV SET 1 R SET 30 100k TO 1M 20 6906 TA01 10 0 0 200 400 600 800 1000 1200 FREQUENCY (kHz) 6906 TA01b 6906fc 1 POWER SUPPLY CURRENT (A)LTC6906 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW + V ................................................................ 0.3V to 6V + + OUT 1 6 V DIV to GND .....................................0.3V to (V + 0.3V) + GND 2 5 GRD SET to GND .....................................0.3V to (V + 0.3V) DIV 3 4 SET + GRD to GND ....................................0.3V to (V + 0.3V) S6 PACKAGE Operating Temperature Range (Note 7) 6-LEAD PLASTIC TSOT-23 LTC6906C ............................................40C to 85C T = 150C, = 230C/W JMAX JA LTC6906I .............................................40C to 85C LTC6906H .......................................... 40C to 125C Specified Temperature Range (Note 7) LTC6906C ................................................ 0C to 70C LTC6906I .............................................40C to 85C LTC6906H .......................................... 40C to 125C Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) ...................300C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC6906CS6 PBF LTC6906CS6 TRPBF LTBJN 6-Lead Plastic TSOT-23 0C to 70C LTC6906IS6 PBF LTC6906IS6 TRPBF LTBJN 6-Lead Plastic TSOT-23 40C to 85C LTC6906HS6 PBF LTC6906HS6 TRPBF LTBJN 6-Lead Plastic TSOT-23 40C to 125C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC6906CS6 LTC6906CS6 TR LTBJN 6-Lead Plastic TSOT-23 0C to 70C LTC6906IS6 LTC6906IS6 TR LTBJN 6-Lead Plastic TSOT-23 40C to 85C LTC6906HS6 LTC6906HS6 TR LTBJN 6-Lead Plastic TSOT-23 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: