Datasheet > LTC1799CS5

LTC1799CS5

更新时间： 2024-11-17 05:34:43

品牌	Logo	应用领域
Linear Systems		/
页数	文件大小	规格书
12页	235K
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可编程晶振芯片

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中文翻译

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数据手册

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LTC1799CS5 数据手册

LTC1799

1kHz to 33MHz

Resistor Set SOT-23 Oscillator

FEATURES

DESCRIPTIO

■

One External Resistor Sets the Frequency

The LTC^®1799 is a precision oscillator that is easy to use

and occupies very little PC board space. The oscillator

frequency is programmed by a single external resistor

(R_SET). TheLTC1799hasbeendesignedforhighaccuracy

operation (≤1.5% frequency error) without the need for

external trim components.

■

Fast Start-Up Time: <1ms

■

1kHz to 33MHz Frequency Range

Low Profile (1mm) ThinSOT^TMPackage

■

Frequency Error ≤1.5% 5kHz to 20MHz

(T_A= 25°C)

■

Frequency Error ≤2% 5kHz to 20MHz

The LTC1799 operates with a single 2.7V to 5.5V power

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

waveoutput.TheCMOSoutputdriverensuresfastrise/fall

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

resistor can vary from 3k to 1M to select a master

oscillator frequency between 100kHz and 33MHz (5V

supply). Thethree-stateDIVinputdetermineswhetherthe

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

output, providing three frequency ranges spanning 1kHz

to33MHz(5Vsupply).TheLTC1799featuresaproprietary

feedback loop that linearizes the relationship between

R_SETand frequency, eliminating the need for tables to

calculate frequency. The oscillator can be easily pro-

grammed using the simple formula outlined below:

(T_A= 0°C to 70°C)

■

±40ppm/°C Temperature Stability

■

0.05%/V Supply Stability

■

50% ±1% Duty Cycle 1kHz to 2MHz

■

50% ±5% Duty Cycle 2MHz to 20MHz

■

1mA Typical Supply Current

100Ω CMOS Output Driver

■

^{Operates from a}U^{Single 2.7V to 5.5V Supply}

APPLICATIO S

■

Low Cost Precision Oscillator

Charge Pump Driver

■

Switching Power Supply Clock Reference

■

Clocking Switched Capacitor Filters

100,DIV Pin = V⁺

■

Fixed Crystal Oscillator Replacement

10k

N• R_SET

■

Ceramic Oscillator Replacement

f_OSC= 10MHz•

, N = 10, DIV Pin = Open

1, DIV Pin = GND

■

Small Footprint Replacement for Econ Oscillators

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

Typical Distribution of Frequency Error,

TYPICAL APPLICATIO

T_A= 25°C (5kHz ≤ f_OSC≤ 20MHz, V⁺= 5V)

Basic Connection

1kHz ≤ f

≤ 33MHz

OSC

OUT

LTC1799

0.1µF

3k ≤ R

≤ 1M

SET

GND

SET

÷100

÷10

DIV

OPEN

÷1

1799 TA01

SOT-23 Actual Size

–1.25 –0.75

–0.25 0 0.25

0.75

1.25

FREQUENCY ERROR (%)

1799 TA02

12 3 4 5 6 7...12

中文翻译

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与LTC1799CS5相关器件

型号	品牌	获取价格	描述	数据表
LTC1799CS5#PBF	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799CS5#TR	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799CS5#TRM	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799CS5#TRPBF	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799IS5	Linear	获取价格	1kHz to 30MHz Resistor Set SOT-23 Oscillator
LTC1799IS5#PBF	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799IS5#TR	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799IS5#TRM	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799IS5#TRMPBF	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature
LTC1799IS5#TRPBF	Linear	获取价格	LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature

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