Datasheet LTC6906 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | Micropower, 10kHz to 1MHz Resistor Set Oscillator in SOT-23 |
| Páginas / Página | 14 / 1 — FEATURES. DESCRIPTION. Supply Current: 12μA at 100kHz. <0.65% … |
| Formato / tamaño de archivo | PDF / 172 Kb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Supply Current: 12μA at 100kHz. <0.65% Frequency Accuracy (from 0°C to 70°C)
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LTC6906 Micropower, 10kHz to 1MHz Resistor Set Oscillator in SOT-23
FEATURES DESCRIPTION
n
Supply Current: 12μA at 100kHz
The LTC®6906 is a precision programmable oscillator that n
<0.65% Frequency Accuracy (from 0°C to 70°C)
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 12μA on a 3.3V supply. n
Single Supply: 2.25V to 5.5V
A single resistor programs the oscillator frequency over n –40°C to 125°C 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 200μs at 1MHz 100:1 total frequency range, 10kHz to 1MHz. n First Cycle After Power-Up is Accurate n 150Ω CMOS Output Driver The LTC6906 is easily programmed according to this n Low Profile (1mm) SOT-23 (ThinSOT™) Package simple formula: ⎧ DIV Pin = V+ ⎛ ⎞ 10, ⎪
APPLICATIONS
ƒ = 1MHz • 100k ⎨ OUT ⎜ ⎟, N = 3, DIV Pin = Open n Low Cost Precision Programmable Oscillator N ⎝RSET ⎠ ⎪ 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 CL = 5pF NO DECOUPLING 80 TA = 25°C CAPACITOR NEEDED 70 10kHz TO 1MHz LTC6906 V+ = 3.6V 60 2.25V TO 3.6V V+ OUT 50 GND GRD 10 V+ = 2.25V 3 DIV SET 40 1 RSET 100k TO 1M 30 20 6906 TA01 POWER SUPPLY CURRENT (A) 10 0 0 200 400 600 800 1000 1200 FREQUENCY (kHz) 6906 TA01b 6906fc 1
FEATURES DESCRIPTION
n
Supply Current: 12μA at 100kHz
The LTC®6906 is a precision programmable oscillator that n
<0.65% Frequency Accuracy (from 0°C to 70°C)
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 12μA on a 3.3V supply. n
Single Supply: 2.25V to 5.5V
A single resistor programs the oscillator frequency over n –40°C to 125°C 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 200μs at 1MHz 100:1 total frequency range, 10kHz to 1MHz. n First Cycle After Power-Up is Accurate n 150Ω CMOS Output Driver The LTC6906 is easily programmed according to this n Low Profile (1mm) SOT-23 (ThinSOT™) Package simple formula: ⎧ DIV Pin = V+ ⎛ ⎞ 10, ⎪
APPLICATIONS
ƒ = 1MHz • 100k ⎨ OUT ⎜ ⎟, N = 3, DIV Pin = Open n Low Cost Precision Programmable Oscillator N ⎝RSET ⎠ ⎪ 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 CL = 5pF NO DECOUPLING 80 TA = 25°C CAPACITOR NEEDED 70 10kHz TO 1MHz LTC6906 V+ = 3.6V 60 2.25V TO 3.6V V+ OUT 50 GND GRD 10 V+ = 2.25V 3 DIV SET 40 1 RSET 100k TO 1M 30 20 6906 TA01 POWER SUPPLY CURRENT (A) 10 0 0 200 400 600 800 1000 1200 FREQUENCY (kHz) 6906 TA01b 6906fc 1