LTC6900 datasheet(1/12 Pages) LINER

номер детали	LTC6900

подробное описание детали	Low Power, 1kHz to 20MHz Resistor Set SOT-23 Oscillator

PDF	12 Pages

Scroll/Zoom	100%

производитель	LINER [Linear Technology]

домашняя страница	http://www.linear.com

Logo

1 / 12 page

LTC6900

1

6900fa

TYPICAL APPLICATION

DESCRIPTION

Low Power, 1kHz to 20MHz

Resistor Set SOT-23 Oscillator

The LTC®6900 is a precision, low power oscillator that is

easy to use and occupies very little PC board space. The

oscillator frequency is programmed by a single external

resistor (RSET). The LTC6900 has been designed for high

accuracy operation (≤1.5% frequency error) without the

need for external trim components.

The LTC6900 operates with a single 2.7V to 5.5V power

supply and provides a rail-to-rail, 50% duty cycle square

wave output. The CMOS output driver ensures fast rise/fall

times and rail-to-rail switching. The frequency-setting

resistor can vary from 10kΩ to 2MΩ to select a master

oscillator frequency between 100kHz and 20MHz (5V

supply). The three-state DIV input determines whether the

master clock is divided by 1, 10 or 100 before driving the

output, providing three frequency ranges spanning 1kHz

to 20MHz (5V supply). The LTC6900 features a proprietary

feedback loop that linearizes the relationship between RSET

and frequency, eliminating the need for tables to calculate

frequency. The oscillator can be easily programmed using

the simple formula outlined below:

fOSC = 10MHz •

20k

N

•RSET

⎛

⎝⎜

⎞

⎠⎟

,N

=

100,

10,

1,

⎧

⎨

⎪

⎩⎪

DIV Pin

= V +

DIV Pin

= Open

DIV Pin

= GND

Clock Generator

FEATURES

APPLICATIONS

n One External Resistor Sets the Frequency

n 1kHz to 20MHz Frequency Range

n 500μA Typical Supply Current, VS = 3V, 3MHz

n Frequency Error ≤1.5% Max, 5kHz to 10MHz

(TA = 25°C)

n Frequency Error ≤ 2% Max, 5kHz to 10MHz

(TA = 0°C to 70°C)

n ±40ppm/°C Temperature Stability

n 0.04%/V Supply Stability

n 50% ±1% Duty Cycle 1kHz to 2MHz

n 50% ± 5% Duty Cycle 2MHz to 10MHz

n Fast Start-Up Time: 50μs to 1.5ms

n 100Ω CMOS Output Driver

n Operates from a Single 2.7V to 5.5V Supply

n Low Proﬁle (1mm) ThinSOT™ Package

n Portable and Battery-Powered Equipment

n PDAs

n Cell Phones

n Low Cost Precision Oscillator

n Charge Pump Driver

n Switching Power Supply Clock Reference

n Clocking Switched Capacitor Filters

n Fixed Crystal Oscillator Replacement

n Ceramic Oscillator Replacement

L, LT, LTC, LTM, Linear Technology and the Linear logo 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.

RSET vs Desired Output Frequency

V+

1

2

3

5

1kHz ≤ fOSC ≤ 20MHz

5V

5V, N = 100

10k ≤ RSET ≤ 2M

0.1μF

6900 TA01a

4

GND

LTC6900

SET

OUT

DIV

OPEN, N = 10

N = 1

fOSC = 10MHz •

20k

N • RSET

()

DESIRED OUTPUT FREQUENCY (Hz)

10

100

1k

100k

1M

10M

6900 TA01b

1

10k

10000

1000

100M

÷100

÷10

÷1

Аналогичный номер детали - LTC6900

производитель	номер детали	датащи	подробное описание детали
Linear Technology	LTC6900	187Kb / 12P	Low Power, 1kHz to 20MHz Resistor Set SOT-23 Oscillator
Linear Technology	LTC6900	367Kb / 28P	TimerBlox: Long Timer, Low Frequency Oscillator
Analog Devices	LTC6900	1Mb / 34P	Voltage-Controlled Pulse Width Modulator (PWM) 11/19-REV.D
	LTC6900	755Kb / 28P	TimerBlox: Delay Block/ Debouncer 11/19-REV.C
	LTC6900	661Kb / 24P	TimerBlox: Resettable, Low Frequency Oscillator Rev. D

More results

Аналогичное описание - LTC6900

производитель	номер детали	датащи	подробное описание детали
Linear Technology	LT1799	120Kb / 4P	1kHz to 30MHz Resistor Set SOT-23 Oscillator
	LTC6905	119Kb / 8P	17MHz to 170MHz Resistor Set SOT-23 Oscillator
	LTC6900	187Kb / 12P	Low Power, 1kHz to 20MHz Resistor Set SOT-23 Oscillator
	LTC6906	173Kb / 12P	Micropower, 10kHz to 1MHz Resistor Set Oscillator in SOT-23
	LTC6907	170Kb / 12P	Micropower, 40kHz to 4MHz Resistor Set Oscillator in SOT-23
	LTC6908-1	247Kb / 16P	Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
	LTC1799	242Kb / 14P	1kHz to 33MHz Resistor Set SOT-23 Oscillator
	LTC6905	176Kb / 12P	17MHz to 170MHz Resistor Set SOT-23 Oscillator
	LTC6906	174Kb / 14P	Micropower, 10kHz to 1MHz Resistor Set Oscillator in SOT-23
	LTC6907	176Kb / 12P	Micropower, 40kHz to 4MHz Resistor Set Oscillator in SOT-23

More results

LTC6900 датащи(PDF) 1 Page - Linear Technology

LTC6900 датащи(HTML) 1 Page - Linear Technology

Аналогичный номер детали - LTC6900

Аналогичное описание - LTC6900

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

датащи скачать

ссылки URL