Variable frequency & Pulse Width Generator module with back lit LCD Display.
Simple source of test pulses.
4 P B switches used to set the Frequency and Duty Cycle,
Short press for single unit increase or decrease
Long press for rapid increase or decrease
Auto save prevents setting loss due to power fail.
Power: 3.3 ~ 30V;
Frequency range: 1Hz ~ 150KHz; auto switching
A: 1-999Hz Resolution 1Hz (Display 123) no decimal)
B: 1KHz-9.99KHz Resolution 10Hz ( Display 1.23)
C: 10KHz-99.9KHz Resolution 100Hz (Display 12.3)
D: 100KHz-~150KHz Resolution 1KHz (Display 1.2.3)
Duty Cycle ~0-99%
Accuracy: ~ 2%;
Max Output Current: <30ma;
Output Voltage: ~Vcc
Ambient temperature: -20 ~ +50 "C"
Connections: 0.1" pitch Solder Pads L: 2-1/16" W: 1-1/4" T: 3/8" WT: .06
WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the “Prop 65” law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example:
ABS plastic contains styrene
PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP)
electrolytic capacitors can contain Ethylene glycol
Brass can contain Lead
flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA)
Aluminum alloys can contain Chromium
To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching!
So far, I have used 2 out of the three I ordered. 100% just right! Frequency and duty-cycle are right on, as confirmed by my 6.5 digit multimeter. You do need some finesse to mount it, though. Great addition to my lab.
- WA9KZY, TX
Output voltage tracks the power supply voltage. With power supply at 5V peak voltage is 5 volts with a 45ns rise and 7ns fall as measured on a 500MHz scope. With power supply at 15V the peak output voltage is 15 volts with a rise of 53ns and a fall of 12ns.
- Bob, NC
Excellent square-wave generator at twice the price or more!
All specs verified in our telecom shop. Below 200Hz the wave is not very square but has good edges. Usable duty cycle 10 - 90%. Rise time ~500ns. Nice looking display