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LMV331M7 数据表(PDF) 13 Page - Texas Instruments

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部件名 LMV331M7
功能描述  LMV331-N Single LMV393-N Dual LMV339-N Quad General Purpose, Low Voltage, Tiny
PDF  32 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LMV331M7 数据表(HTML) 13 Page - Texas Instruments

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LMV331-N, LMV339-N, LMV393-N
www.ti.com
SNOS018G – AUGUST 1999 – REVISED FEBRUARY 2013
By varying resistor R1, the time between pulses of the generator can be changed without changing the pulse
width. Similarly, by varying R2, the pulse width will be altered without affecting the time between pulses. Both
controls will change the frequency of the generator. The pulse width and time between pulses can be found from:
Figure 18. Pulse Generator
(16)
Solving these equations for t1 and t2
t1 =R4C1ln2
(17)
t2 =R5C1ln2
(18)
These terms will have a slight error due to the fact that Vmax is not exactly equal to 2/3 VCC but is actually
reduced by the diode drop to:
(19)
Copyright © 1999–2013, Texas Instruments Incorporated
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Product Folder Links: LMV331-N LMV339-N LMV393-N



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