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The signal generator module can output PWM square wave shape wave, triangle wave, saw tooth,
sine wave signal, the frequency range of 10HZ-300KHZ adjustable duty cycle of 2% -98%. The
output signal wave frequency peaks in radians, trough radians, rise time, fall time is adjustable.
Remarks: adjusting the capacity of the C29 can be changed, the variable range of the output
frequency of the pulse. Up to 300KHZ output.
PCB 50*50 MM
Power:11-28VDC
(1)
(2)
(3)
(4)
adjustable duty cycle
adjustable frequency
c frequency Band
C29 for output 300KHz
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(5)
(6)
(7)
(8)
(9)
adjustable sine wave Sine wave Valley radians
adjustable Waveform
adjustable Acceleration
adjustable Acceleration
adjustable Wave width
(10) adjustable sine wave Sine wave Crest radians
(11) Wave output
(12) Power input
The output amplitude: sine wave, triangle wave, sawtooth minimum output amplitude for the
power supply voltage of about 30% peak-to-peak output of the PWM square wave, rectangular
wave peak-to-peak amplitude is about 80% of the supply voltage.
For example: 12V supply: sawtooth, sine, triangle wave output amplitude of about 4V-VPP (12V *
30%), PWM, square wave, rectangular wave output amplitude of 9.6V-VPP (12V * 80%)
Output amplitude adjustment potentiometer adjustment range: 30% -80% VPP, supply voltage,
gain adjustment potentiometer change is too big or too small, wave outputs distortion variant.
Supply voltage. The recommended operating voltage is 12-18V, so the effect will be better. But
the power of this module is 10-30V can work, but definitely not exceed 30 V, otherwise it will
burn the IC if the voltage is lower than 10V, the module will not wave output.
The current driving capability of the output signal and power supply current, the output current
drive capability 10MA about the power supply current as long as the guarantee there 30MA can.
Output frequency. Frequency oscillation capacitor implementation of sub-frequency adjustment
switch board jump stitches. External shocks capacitance of C1, C3, C4, C2, C29 corresponding to
the capacitance are: 100pF, 1NF, 10nF, 0.1uF, 1uF of five band frequency adjustment range, and
the adjacent frequency of 10 times.
Example: jumping needle jump in the C4 position, adjust the frequency control potentiometer
signal to the output 2KHZ, then jump pin change to C2 frequency output 20KHZ jump stitches
change to C3 frequency output 200HZ
In addition, if you need to get the high-frequency signal 80KHZ-300KHZ, need to do the following
actions:
A. must jump from switching cable needle(6) leads the signal.
B. external shocks capacitor-C29(4) to be replaced less than 100PF, the capacitor the smaller, the
higher the frequency
Output waveform adjustment.
A. triangular wave, the (positive and negative) adjustment of the saw tooth.
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The skipped stitches jump(6) triangle wave / saw tooth position. As shown below:
Adjustment potentiometer along time(1) can change the slope of the triangular wave with wave
positive-clockwise or counterclockwise direction.
Adjust the frequency potentiometer (2) can change the frequency of the triangle wave or saw
tooth
In fact, the saw tooth also belongs to the triangle wave.
B. sine wave.
The skipped stitches Skip(6) sine wave position. As shown below:
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Adjustment potentiometer(1) along time can change the slope of the sine wave with wave-type
positive-clockwise or counterclockwise direction.
Adjust the frequency potentiometer(2) can change the frequency of the sine wave
Adjust(5)(10) the sine wave peak radians, the sine wave Valley radians potentiometer can change
the curvature of the wave crest and trough radian shape.
Note: The two potentiometers(5)(10) feature will adjust overdone exchange. Also marked the
peak will become adjusted trough, marked the trough will become tone crest, but are not to
affect the performance of the wave. You can.
The acceleration potentiometer(7)(8) wave fine-tuning.
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C.PWM. Adjust the square wave, rectangular wave.
Jump stitches skip(6) PWM square wave, rectangular wave position. As shown below:
Adjustment potentiometer(1) along time can change the duty cycle of the PWM. Square wave,
rectangular wave.
Adjust the frequency potentiometer(2) can change the PWM. Square wave, rectangular wave
frequency
The acceleration potentiometer(7)(8) wave fine-tuning.
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If you are asking for more than the frequency of the wave 100KHZ distortion and demanding.
Can be inserted in the mode conversion on the adjust pin cable, the the unamplified wave signal
output to the outside. Jump stitches are defined as follows:
1 triangle wave, saw tooth,
2 PWM square wave shape wave,
3 sine wave signal,
4 GND
Pitch 2.54MM cable insert plate can jump pin at the figure. The ground can be connected to the
terminals. The integrity of the signal output from the jump stitches are better than at the
terminals. The wave magnitude smaller drive capability, sine, triangle wave 1/3VPP supply
voltage, the PWM square wave power supply voltage 4/5VPP.
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