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LTC6905-XXX PDF预览

LTC6905-XXX

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
凌特 - Linear 振荡器
页数 文件大小 规格书
8页 140K
描述
Fixed Frequency SOT-23 Oscillator

LTC6905-XXX 数据手册

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LTC6905-XXX Series  
Fixed Frequency  
SOT-23 Oscillator  
U
DESCRIPTIO  
FEATURES  
The LTC®6905-XXX series of parts are precision, fixed  
frequency, silicon oscillators designed to minimize board  
space while maximizing accuracy and ease of use.  
No External Components to Set Frequency  
Frequency Error ±0.5% Typical  
Fast Start-Up Time: 100µs Typical  
±20ppm/°C Temperature Stability  
Programmed at the factory to a fixed frequency, the  
LTC6905-XXX series of parts need no external trim com-  
ponents. Aninternalthree-statedividerallowsfordivision  
of the master clock by 1, 2 or 4, providing 3 frequencies  
(for each device).  
Output Enable Provided  
Includes Divide by 1, 2 or 4  
Rise Time: 0.5ns, CL = 5pF  
Timing Jitter: <0.8% Typical  
50% ±2.5% Duty Cycle  
The LTC6905-XXX series operate with a single 2.7V to  
5.5V power supply and provide a rail-to-rail, 50% duty  
cycle, square wave output. The OE pin will disable the  
output when brought low and synchronously enable the  
output when brought high, avoiding pulse slivers.  
IS = 8mA Typical (fOSC = 100MHz, CL = 5pF)  
CMOS Output Drives 600Load  
Single Supply 2.7V to 5.5V  
Low Profile (1mm) ThinSOTTM Package  
U
The four products of the LTC6905-XXX family are:  
APPLICATIO S  
LTC6905-133: fOSC = 133MHz, 66.7MHz, 33.3MHz  
LTC6905-100: fOSC = 100MHz, 50MHz, 25MHz  
LTC6905-96: fOSC = 96MHz, 48MHz, 24MHz  
LTC6905-80: fOSC = 80MHz, 40MHz, 20MHz  
Data Clocks for High Reliability Applications  
High Vibration, High Acceleration Environments  
Replacement for Fixed Crystal and Ceramic  
Oscillators  
The LTC6905-XXX series of parts are designed with a factory  
trim option to modify the divider ratios from 1, 2, 4 to 8, 16,  
32. A second trim option allows for additional master clock  
frequencies. For the alternate divider ratios and unlisted  
frequencies, contact LTC marketing.  
, LTC and LT 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.  
U
TYPICAL APPLICATIO  
Typical Distribution of Frequency Error, TA = 25°C  
40  
V
S
= 3V  
Basic Connection  
30  
20  
10  
0
f
= 133MHz  
3V  
OSC  
1
2
3
5
4
+
3V  
0.1µF  
V
OUT  
LTC6905-133  
GND  
÷1  
÷2  
OE  
DIV  
OPEN  
÷4  
6905x TA01  
–1  
–0.5  
0.0  
0.5  
1
6905x TA02  
% FREQUENCY ERROR  
6905xf  
1

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