-Power supply voltage: 5-15VDC, current ≥100MA.
-Output current is 15mA @ 5V power supply; 35mA @ 12V power supply.
-Output amplitude: 4.2V V-PP -- 11.4V-PP. (Out amplitude varies from voltage input).
-Max. output current: ≥15MA (5V power supply, V-PP>50%), ≥15MA (12V power supply, V-PP>50%).
-With output LED indicator, When it is in low level, LED is off, when it is in high level, LED is on, when frequency is low, the LED is flashing.

Main Features

-Output frequency range is selectable and adjustable continuously.

-Four types of frequency range output:

Low frequency range: 1Hz~50Hz

Medium frequency range: 50Hz~1kHz

Medium high frequency range:1kHz~10kHz

High frequency range: 10kHz~200kHz

-Small size: 35x33mm. height: 15mm

Typical Applications

-Stepping motor driver.

-Generate adjustable pulse signal for MCU.

-Generate adjustable pulse to control circuit.

-Used as square wave signal generator in square wave meters testing.

NE555 Square Wave Generator Adjustment

Adjustable Output Frequency Calculation Formula:

Cycle T=0.7(RA+2RB)C

RA, RB Potentiometer: 0-10K adjustable.

@Low frequency range: C=0.001uF.

@Medium frequency range: C=0.1uF

@high frequency range: C=1uF

@High frequency range: C=100uF

*It is not suitable for too much high precision application requirements purpose.

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