LTC6906

1

6906fc

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Micropower, 10kHz to 1MHz

Resistor Set Oscillator

in SOT-23

is versatile, compact and easy to use. Micropower opera-

tion benefits portable and battery-powered equipment. At

100kHz, the LTC6906 consumes 12μA on a 3.3V 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, 10kHz to 1MHz.

The LTC6906 is easily programmed according to this

simple formula:

1MHz

N

•

100k

⎛

⎝

⎜

⎞

⎠

⎟,N =

10,

3,

1,

⎧

⎨

⎪

⎩

⎪

DIV Pin

DIV Pin

= Open

DIV Pin

= GND

No decoupling capacitor is needed in most cases, yield-

ing an extremely compact solution occupying less than

20mm2. Contact LTC Marketing for a version of the part

with a shutdown feature or lower frequency operation.

The LTC6906 is available in the 6-lead SOT-23 (ThinSOT)

package.

Micropower Clock Generator

APPLICATIONS

Crystal and Ceramic Oscillators

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

of their respective owners.

Typical Supply Current vs Frequency

10kHz TO 1MHz

NO DECOUPLING

CAPACITOR

NEEDED

6906 TA01

100k TO 1M

2.25V TO 3.6V

1

3

10

GND

DIV

OUT

GRD

SET

LTC6906

FREQUENCY (kHz)

0

0

10

30

40

50

800

90

6906 TA01b

20

400

200

1000

600

1200

60

70

80