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LTC6905HS5-133#TRM PDF预览

LTC6905HS5-133#TRM

更新时间： 2024-01-06 07:04:58
品牌 Logo 应用领域
凌特 - Linear 机械振荡器
页数 文件大小 规格书
12页 161K
描述
LTC6905-XXX - Fixed Frequency SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C

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LTC6905HS5-133#TRM 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOT包装说明：PLASTIC, SOT-23, 5 PIN
针数：5Reach Compliance Code：not_compliant
ECCN代码：EAR99风险等级：5.33
其他特性：TAPE AND REEL最长下降时间：0.5 ns
频率调整-机械：NO频率稳定性：20%
JESD-609代码：e0安装特点：SURFACE MOUNT
标称工作频率：133 MHz最高工作温度：125 °C
最低工作温度：-40 °C振荡器类型：CMOS
输出负载：5 pF物理尺寸：2.9mm x 1.75mm x 1.0mm
最长上升时间：0.5 ns最大供电电压：5.5 V
最小供电电压：2.7 V表面贴装：YES
最大对称度：52.5/47.5 %端子面层：Tin/Lead (Sn/Pb)
Base Number Matches：1

LTC6905HS5-133#TRM 数据手册

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LTC6905  
17MHz to 170MHz  
Resistor Set SOT-23 Oscillator  
FEATURES  
DESCRIPTION  
The LTC®6905 precision, programmable silicon oscilla-  
tor is easy to use and occupies very little board space. It  
requires only a single resistor to set the output frequency  
from 17MHz to 170MHz with a typical frequency error of  
0.5% or less.  
n
One External Resistor Sets the Frequency  
n
Fast Start-Up Time: 100μs Typical  
n
Frequency Range: 17MHz to 170MHz  
n
Frequency Error 0.5% Typ 17MHz to 170MHz  
(T = 0°C to 70°C, Over All Settings)  
A
n
20ppm/°C Temperature Stability  
The LTC6905 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. Operation is simple: A  
n
Rise Time: 0.5ns, C = 5pF  
L
n
n
n
n
n
n
Timing Jitter: 7.2ps RMS at 170MHz  
50% 2.5% Duty Cycle  
6mA Typical Supply Current, f  
= 100MHz  
S
OSC  
single resistor, R , between 10k to 25k is used to set  
SET  
CMOS Output Drives 500Ω Load (V = 3V)  
the frequency, and an internal three-state divider (DIV  
Operates from a Single 2.7V to 5.5V Supply  
input) allows for division of the master clock by 1, 2 or 4,  
™
Low Profile (1mm) ThinSOT Package  
providing three frequencies for each R value.  
SET  
The LTC6905 features a proprietary feedback loop that  
APPLICATIONS  
linearizes the relationship between R  
and frequency,  
SET  
eliminating the need for tables to calculate frequency. The  
oscillator can be easily programmed using the simple  
formula outlined below:  
n
High Frequency Precision Oscillator  
n
High Speed Data Bus Clock  
n
Fixed Crystal Oscillator Replacement  
Ceramic Oscillator Replacement  
n
1, DIV Pin = V+  
⎧
⎪
⎛168.5MHz •10kΩ  
⎞
1
⎠ N  
L, 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.  
Protected by U.S. Patents including 6614313, 6342817.  
fOSC  
=
+ 1.5MHz • , N = 2, DIV Pin = Open  
⎜
⎟
⎨
⎝
RSET  
⎪
4,DIV Pin = GND  
⎩
For higher accuracy, fixed frequency versions that  
include an internal frequency-setting resistor, see the  
LTC6905-XXX Series data sheet  
.
TYPICAL APPLICATION  
Typcial Distribution of Frequency Error, TA = 25°C  
60  
+
V
R
= 3V  
= 12k  
SET  
50  
DIV = 1  
Basic Connection  
40  
30  
17.225MHz ≤ f  
5
≤ 170MHz  
OSC  
5V  
1
2
3
+
V
OUT  
LTC6905  
0.1μF  
5V  
10k ≤ R  
≤ 25k  
20  
10  
0
SET  
GND  
SET  
÷1  
÷4  
4
÷2  
DIV  
OPEN  
6905 TA01  
–0.5  
–0.3  
–0.1  
0.1  
0.3  
0.5  
6905 TA02  
% ERROR  
NOTE: RESISTOR, R , TOLERANCE WILL ADD  
SET  
TO THE FREQUENCY ERROR  
6905fd  
1
1234567...12

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