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LTC6909HMS#TRPBF PDF预览

LTC6909HMS#TRPBF

更新时间: 2024-09-15 21:13:59
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
22页 307K
描述
LTC6909 - 1 to 8 Output, Multiphase Oscillator with Spread Spectrum Modulation; Package: MSOP; Pins: 16; Temperature Range: -40°C to 125°C

LTC6909HMS#TRPBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:MSOP包装说明:TSSOP, TSSOP16,.19,20
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.02模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:4.039 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP16,.19,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, 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:1.1 mm子类别:Other Analog ICs
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):5 V表面贴装:YES
技术:CMOS温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3 mm
Base Number Matches:1

LTC6909HMS#TRPBF 数据手册

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LTC6909  
1 to 8 Output, Multiphase  
Silicon Oscillator with Spread  
Spectrum Modulation  
FeAtures  
Description  
The LTC®6909 is an easy to use precision oscillator that  
can provide 1-, 2-, 3-, 4-, 5-, 6-, 7- or 8-phase synchro-  
nized outputs. The LTC6909 also offers spread spectrum  
frequencymodulation(SSFM),whichcanbeenabledtoim-  
prove electromagnetic compatibility (EMC) performance.  
n
1-, 2-, 3-, 4-, 5-, 6-, 7- or 8-Phase Outputs  
n
One External Resistor Sets the Output Frequency  
from 12.5kHz to 6.67MHz  
Optional Spread Spectrum Frequency for Improved  
EMI Performance  
1ꢀ0 Frequency Spreadinꢁ  
Outputs Can Be Held Low or Floated (Hi-Z)  
Three Spread Spectrum Modulation Rates  
n
n
Eight separate outputs provide up to eight rail-to-rail,  
50% duty cycle clock signals. Using three logic inputs, the  
outputsareconfiguredforphaseseparation, rangingfrom  
45° to 120° (three to eight phases). The clock outputs can  
also be held low or configured for Hi-Z. A single resistor,  
combined with the phase configuration, sets the output  
frequency, based on the following formula:  
n
n
f
/16, f /32 and f /64  
OUT  
OUT OUT  
n
n
n
n
n
n
400µA Supply Current  
Operates from a Single 2.7V to 5.5V Supply  
Fast Start-Up Time  
First Cycle Accurate  
f
= 20MHz • 10k/(R • PH)  
SET  
OUT  
Outputs Are High Impedance Until Frequency Settles  
MS16 Package  
where PH = 3, 4, 5, 6, 7 or 8  
The LTC6909 can be used in applications requiring only  
one or two output phases. Alternatively, the LTC6908  
family of parts provides the same two output signals but  
in a smaller SOT-23 or 2mm × 3mm DFN package. The  
LTC6908-1 provides complimentary (180°) outputs while  
the LTC6908-2 provides quadrature (90°) outputs.  
ApplicAtions  
Synchronizing Multiple Switching Power Supplies  
L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks  
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents including 6342817, 6614313,  
7417509.  
n
typicAl ApplicAtion  
15ꢀkHz to 3ꢀMHz Output  
Frequency Spectrum  
(9kHz Res BW)  
Providinꢁ a 4-Phase Synchronizinꢁ Clock to LTM Modules  
0
SSFM DISABLED  
10V TO 14V  
–10  
–20  
INTV  
CC  
LTM4601  
S0FT-START  
0.1µF  
LTC6909  
–30  
+
1.5V  
V D  
OUT1  
OUT2  
OUT3  
OUT4  
OUT5  
OUT6  
OUT7  
OUT8  
–40  
–50  
0
48A  
GND  
TRACKING  
TRACKING  
TRACKING  
+
LTM4601-1  
V A  
71.5k  
SET  
PH0  
PH1  
PH2  
MOD  
0.1µF  
SSFM ENABLED  
SSFM = f /32  
–10  
–20  
OUT  
LTM4601-1  
LTM4601-1  
–30  
–40  
–50  
6909 TA01  
ENABLE SSFM  
0.01µF  
DISABLE SSFM  
150kHz  
30MHz  
FREQUENCY  
(FUNDAMENTAL AND HARMONICS SHOWN)  
6909 TA01b  
6909fa  
1

LTC6909HMS#TRPBF 替代型号

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