Datasheet > LM555CMX_12

LM555CMX_12

更新时间： 2022-03-18 06:57:56

阅读下载

中文翻译

获取价格

如果您发现信息不准确，欢迎纠错

LM555CMX_12 数据手册

LM555

Figure 8. Waveforms of Frequency Divider Operation

4. Pulse Width Modulation

The timer output waveform may be changed by modulating the control voltage applied to the timer's pin 5 and changing the

reference of the timer's internal comparators. Figure 9 illustrates the pulse width modulation circuit.

When the continuous trigger pulse train is applied in the monostable mode, the timer output width is modulated according to

the signal applied to the control terminal. Sine wave as well as other waveforms may be applied as a signal to the control

terminal. Figure 10 shows the example of pulse width modulation waveform.

+Vcc

RESET

Vcc

Trigger

Output

DISCH

TRIG

THRES

CONT

OUT

Input

GND

Figure 9. Circuit for Pulse Width Modulation

Figure 10. Waveforms of Pulse Width Modulation

5. Pulse Position Modulation

If the modulating signal is applied to the control terminal while the timer is connected for the astable operation as in Figure 11,

the timer becomes a pulse position modulator.

In the pulse position modulator, the reference of the timer's internal comparators is modulated which in turn modulates the

timer output according to the modulation signal applied to the control terminal.

Figure 12 illustrates a sine wave for modulation signal and the resulting output pulse position modulation : however, any wave

shape could be used.

1...5 6 789 10 11...13

中文翻译

下载PDF

型号	品牌	描述	获取价格	数据表
LM555CN	HARRIS	Timers for Timing Delays and Oscillator Application in Commercial, Industrial and Military	获取价格
LM555CN	ONSEMI	单计时器	获取价格
LM555CN	TI	Timing from Microseconds through Hours	获取价格
LM555CN	NSC	Timer	获取价格
LM555CN	FAIRCHILD	Single Timer	获取价格
LM555CN	INTERSIL	Timers for Timing Delays and Oscillator Applications in Commercial, Industrial and Militar	获取价格
LM555CN/A+	ETC	Analog Timer Circuit	获取价格
LM555CN/B+	ETC	Analog Timer Circuit	获取价格
LM555CN/NOPB	TI	Timing from Microseconds through Hours	获取价格
LM555CN_12	FAIRCHILD	Single Timer	获取价格
LM555CN_NL	FAIRCHILD	暂无描述	获取价格
LM555CS	ETC	Analog Timer Circuit	获取价格
LM555H	ETC	Analog Timer Circuit	获取价格
LM555H/883	TI	LM555QML Timer	获取价格
LM555H/883B	TI	PULSE; RECTANGULAR, TIMER, MBCY8, METAL CAN-8	获取价格
LM555H/883C	NSC	IC,TIMER,BIPOLAR,CAN,8PIN,METAL	获取价格
LM555H-MLS	TI	PULSE; RECTANGULAR, TIMER, MBCY8, TO-5, 8 PIN	获取价格
LM555H-MLS/NOPB	NSC	PULSE; RECTANGULAR, TIMER, MBCY8	获取价格
LM555I	ETC		获取价格
LM555ICM	FAIRCHILD	1 Func, PDSO8, SOP-8	获取价格