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LTC6930CDCB-7.37-TRMPBF

更新时间： 2024-12-01 05:44:03
品牌 Logo 应用领域
凌特 - Linear 振荡器
页数 文件大小 规格书
12页 178K
描述
32.768kHz to 8.192MHz Precision μPower Oscillators

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LTC6930CDCB-7.37-TRMPBF 数据手册

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LTC6930-X.XX  
32.768kHz to 8.192MHz  
Precision µPower Oscillators  
FEATURES  
DESCRIPTION  
TheLTC®6930seriesisafamilyofverylowpowerprecision  
silicon oscillators with a frequency error less than 0.09%.  
For each oscillator, the user can select one of 8 frequen-  
cies between 32.768kHz and 8.192MHz. Based on a fixed  
master oscillator frequency, internal frequency dividers  
between 1 and 128 provide the 8 different frequencies.  
The LTC6930 requires no external components other than  
power supply bypass capacitors. Requiring only a single  
1.7V to 5.5V supply enables operation from a single Li-Ion  
cell or 2 AA alkaline cells.  
n
Frequency Error <0.09% Max at 25°C  
n
Startup Time <110μs at All Frequencies  
n
1.7V to 5.5V Single Supply Operation  
+
n
105μA Typical Supply Current at 32kHz, V = 3V  
+
n
n
n
n
490μA Typical Supply Current at 8MHz, V = 3V  
+
Typical RMS Period Jitter <0.15% at V = 3V  
No External Components to Set Frequency  
5 Options Cover 32.768kHz to 8.192MHz:  
LTC6930-4.19: 4.194304MHz ÷ N  
LTC6930-5.00: 5.000000MHz ÷ N  
LTC6930-7.37: 7.373800MHz ÷ N  
The LTC6930 features a proprietary control architecture  
that allows for ultra-low power operation while maintain-  
ingindustryleadingaccuracyandjitterspecifications. The  
exceptionally fast start-up time, combined with the low  
power consumption, is ideal for battery operated applica-  
tions with frequent power-up cycles.  
LTC6930-8.00: 8.000000MHz ÷ N  
LTC6930-8.19: 8.192000MHz ÷ N  
Where N = 1, 2, 4, 8, 16, 32, 64, 128  
(N Determined by State of DIVA, DIVB, DIVC Pins)  
–40°C to 125°C Operating Temperature Range  
Tiny 2mm × 3mm DFN or MS8 Package  
n
n
Any frequency from 32.768kHz to 8.192MHz can be pro-  
videdbythefactory.Minimumordersizesapplyforcustom  
frequencies. Please consult LTC Marketing for details.  
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other  
trademarks are the property of their respective owners. Protected by U.S. Patents including  
6342817, 6614313.  
APPLICATIONS  
n
Digitally Controlled Oscillator  
n
Microprocessor Clock  
n
Power Supply Clock  
Portable and Battery Operated Devices  
n
TYPICAL APPLICATION  
4MHz Micropower Clock Generator  
Typical Frequency Error Distribution  
+
70  
V
S
= 1.7V TO 5.5V  
T
= 25°C  
= 3V  
A
+
I
= 325μA AT 3V  
DC  
V
60  
50  
40  
30  
20  
10  
0
DIV = 0  
1045 UNITS  
0.1μF  
+
+
V
V
DIVA  
OUT  
LTC6930-8.00  
DIVB  
4MHz  
DIVC  
GND  
GND  
–0.10  
–0.05  
0
0.05  
0.10  
6930 TA01a  
FREQUENCY ERROR (%)  
6930 TA01b  
6930fa  
1
1234567...12

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