Analog Devices LTC6907 Product Info

• Supply Current: 36µA at 400kHz
• 1% Frequency Accuracy (from 0°C to 70°C)
• Frequency Range: 40kHz to 4MHz
• One Resistor Sets the Oscillator Frequency
• –40°C to 125°C Operating Temperature Range
• Start-Up Time Under 200µs at 4MHz
• First Cycle After Power-Up is Accurate
• 150Ω CMOS Output Driver
• Low Profile (1mm) SOT-23 (ThinSOTTM) Package

The LTC6907 is a precision programmable oscillator that is versatile, compact and easy to use. Micropower operation benefits portable and battery-powered equipment. At 400kHz, the LTC6907 consumes 36µA on a 3V supply.

A single resistor programs the oscillator frequency over a 10:1 range with better than 0.5% initial accuracy. The output frequency can be divided by 1, 3 or 10 to span a 100:1 total frequency range, 40kHz to 4MHz.

The LTC6907 is easily programmed according to this simple formula:

fout = 4MHz / N * (50k/Rset)   N = {10 DIV Pin = V⁺, 3 DIV Pin = Open, 1 DIV Pin = GND}

The LTC6907 is available in the 6-lead SOT-23 (ThinSOT) package.  Contact LTC Marketing for a version of the part with a shutdown feature or lower frequency operation.

Applications

• Low Cost Precision Programmable Oscillator
• Rugged, Compact Micropower Replacement for
• Crystal and Ceramic Oscillators
• High Shock and Vibration Environments
• Portable and Battery-Powered Equipment
• PDAs and Cellular Phones