參數(shù)資料
型號(hào): LMC555ENG
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 模擬波形發(fā)生器
英文描述: PULSE; RECTANGULAR, 3 MHz, TIMER, PDIP8
封裝: PLASTIC, DIP-8
文件頁數(shù): 11/13頁
文件大?。?/td> 389K
代理商: LMC555ENG
Application Info (Continued)
the modulating signal, since the threshold voltage and hence
the time delay is varied.
Figure 11 shows the waveforms
generated for a triangle wave modulation signal.
50% DUTY CYCLE OSCILLATOR
The frequency of oscillation is
f = 1/(1.4 R
CC)
DS008669-21
FIGURE 10. Pulse Position Modulator
DS008669-16
VCC = 5V
Top Trace: Modulation Input 1V/Div.
TIME = 0.1 ms/Div.
Bottom Trace: Output Voltage 2V/Div.
RA = 3.9 k
RB =3 k
C = 0.01F
FIGURE 11. Pulse Position Modulator Waveforms
DS008669-6
FIGURE 12. 50% Duty Cycle Oscillator
micro SMD Marking Orientation
Top View
DS008669-23
Bumps are numbered counter-clockwise
LMC555
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