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Circuits Timing TimerBlox
Circuits Timing & Frequency Pulse Width Modulators

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1MHz Pulse Width Modulator

View Full Size Image View Original Datasheet 1MHz Pulse Width Modulator

This circuit highlights the use of the LTC6992 as a 1MHz Pulse Width Modulator (PWM); converting an analog input into a PWM output. The LTC6992 is part of the TimerBlox family of versatile silicon timing devices and provides an easy-to-use analog voltage-controlled PWM capability. To program the master oscillator frequency a single resistor is all that is needed. The output frequency is determined by this master oscillator and an internal frequency divider programmable to eight settings from 1 to 16384. Applying a voltage between 0V and 1V on the MOD pin sets the duty cycle.



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