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LTC1799CS5#PBF

更新时间： 2024-11-18 13:09:43
品牌 Logo 应用领域
凌特 - Linear 振荡器
页数 文件大小 规格书
4页 122K
描述
LTC1799 - 1kHz to 33MHz Resistor Set SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature Range: 0°C to 70°C

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LTC1799CS5#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOT包装说明：VSSOP, TSOP5/6,.11,37
针数：5Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：7.31模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G5JESD-609代码：e3
长度：2.95 mm湿度敏感等级：1
功能数量：1端子数量：5
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装等效代码：TSOP5/6,.11,37封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：3/5 V认证状态：Not Qualified
座面最大高度：1 mm子类别：Other Analog ICs
最大供电电流 (Isup)：2.4 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：3 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：1.625 mmBase Number Matches：1

LTC1799CS5#PBF 数据手册

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Final Electrical Specifications  
LTC1799  
1kHz to 30MHz  
Resistor Set SOT-23 Oscillator  
U
January 2001  
DESCRIPTIO  
FEATURES  
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  
(RSET). TheLTC1799hasbeendesignedforhighaccuracy  
operation (≤1.5% frequency error) without the need for  
external trim components.  
■
One External Resistor Sets the Frequency  
■
1kHz to 30MHz Frequency Range  
■
SOT-23 Miniature Package  
■
Frequency Error ≤1.5% 5kHz to 20MHz  
(TA = 25°C)  
■
Frequency Error ≤2% 5kHz to 20MHz  
(TA = 0°C to 70°C)  
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 3.32k to 1M to select a master  
oscillator frequency between 100kHz and 30MHz (5V  
supply). Thethree-stateDIVinputdetermineswhetherthe  
master clock is divided by 1, 10 or 100 before driving the  
output, providing three frequency ranges spanning 1kHz  
to30MHz(5Vsupply).TheLTC1799featuresaproprietary  
feedback loop that linearizes the relationship between  
RSET and frequency, eliminating the need for tables to  
calculate frequency. The oscillator can be easily pro-  
grammed using the simple formula outlined below:  
■
±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 Single 2.7V to 5.5V Supply  
U
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• RSET  
Ceramic Oscillator Replacement  
fOSC = 10MHz •  
, N = 10, DIV PIN = Hi- Z  
1, DIV PIN = GND  
■
Small Footprint Replacement for Econ Oscillators  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Typical Distribution of Frequency Error, TA = 25°C  
25  
Basic Connection  
20  
15  
10  
5
5kHz ≤ f  
5
≤ 20MHz  
+
OSC  
V
1
2
3
V+  
LTC1799  
OUT  
0.1µF  
+
V
5k ≤ R  
≤ 200k  
SET  
GND  
÷100  
÷10  
÷10  
4
SET  
DIV  
Hi-Z  
1799 TA01  
GND  
0
SOT-23 Actual Size  
–1.25 –0.75  
–0.25 0 0.25  
0.75  
1.25  
FREQUENCY ERROR (%)  
1799 TA02  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
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