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LTC6907
1
6907fa
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
OUTPUT FREQUENCY (kHz)
10
SUPPLY
CURRENT
(
A)
100
6907 TA02
10
1000
10000
100
1000
CLOAD = 5pF
T = 25
°C
3.3V, –10
:
3.3V, –3
:
3.3V, –1
:
40kHz TO 4MHz
6907 TA01
RSET
50k TO 500k
3V TO 3.6V
0.1
F
÷1
÷3
÷10
V+
GND
DIV
OUT
GRD
SET
LTC6907
■ Supply Current: 36
A 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 200
s at 4MHz
■ First Cycle After Power-Up is Accurate
■ 150
CMOS Output Driver
■ Low Profile (1mm) SOT-23 (ThinSOT
TM) Package
Micropower, 40kHz to 4MHz
Resistor Set Oscillator
in SOT-23
■ 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
Micropower Clock Generator
Typical Supply Current vs Frequency
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
The LTC
6907 is a precision programmable oscillator that
is versatile, compact and easy to use. Micropower opera-
tion benefits portable and battery-powered equipment. At
400kHz, the LTC6907 consumes 36
A on a 3V supply.
A single resistor programs the oscillator frequency over a
10:1 range with better than 0.65% 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:
OUT
SET
MHz
N
k
R
N
=
=
4
50
10
3
1
,
DIV Piin
V
DIV Pin
GND
=
+
Open
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.
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