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Your cart is empty. The ICL8038 module is designed for common frequency ranges. It is adjustable from 5 gears and generates low-distortion triangular waves, square and sine waves from 10Hz to 450KHz. Sine wave can be used for test signals, drive signals, carrier frequency signals, etc; square wave can be used for switching signals, trigger signals, etc; triangular wave is mainly used for scanning signals.
Features:
Working voltage: 12V ~ 15V
Output: Triangular wave, Square wave and sine wave.
Frequency range: 10HZ ~ 450kHz
Low distortion sine wave: 1%
Duty cycle range: 2% to 98%
Low temperature drift: 50ppm / °
Triangular wave output linearity: 0.1%
Working temperature: 0 ~ 70 °
Board size: 54.5*37.8mm
Functions:
VCC,GND: working voltage
AC: with DC bias output
G: ground
DC: pure signal output
R11: Frequency adjustment
R12: Square wave duty cycle adjustment
R13: Sine wave linear adjustment
R14: Amplitude adjustment
R15: Square wave linear adjustment
Jumper P2: select different waveforms(triangular, square or sine waves)
Jumper P3: select different frequency ranges
10Hz-450Hz
90Hz-1.5KHz
940Hz-15KHz
6KHz-120KHz
20KHz-450KHz
Package Include:
1 x ICL8038 Low/Medium Frequency Signal Source Waveform Sine Signal Generator Module
R
Reviewed in the United States on February 13, 2025
ICL8038 Signal Generator 12VDC to 15VDC:This is a fair general purpose sign, square or triangle generator.It seems to be fairly stable after it is set, has a small amount of frequency drift.If you need high stability this is not for you.
markeby
Reviewed in the United States on May 8, 2023
I worked with this chip 40 years ago and am still quite familiar. The only cheap and easy way I found was to buy a kit like this. There were no instructions included but with some digging I found the description of the trim pots and a datasheet on the chip so, how to use this board is quite clear to me. It would be nice if they would send a functional chip. This one proved to be quite dead.
Chris
Reviewed in the United States on July 19, 2021
The picture shows the ILC8038 chip as socketed. Its not. I had the chip fail (my fault), and it was a bear getting the chip off the board and socketing it. Frequency drift is pretty bad, even with a regulated supply. It never comes back to the same frequency after a power cycle. Once its warmed up and running, it does get more stable. I'm using it for a CTCSS Tone Encoder for a 2 meter ham radio, and it works well, but requires keeping a frequency counter on it to adjust for drift. It needs 127.3 Hz, with about a 1 Hz tolerance, and that's a little tricky to maintain.Also a major note: there is no documentation, and none of the controls are marked to indicate their function. I had to use an oscilloscope to watch the waveform to see what each control did.On the other side of it... it was only $6, and it does the job.
Paula (and Jake)
Reviewed in the United States on February 28, 2021
Photo shows the IC in a DIP socket; in fact it is soldered in. FYI, regarding the one-star review - the documentation is in the item description on the Amazon product page (maybe it was added after his review). Not the most conventional 'manual', but convenient to have as copyable text.
Sonofthe Anonymousman
Reviewed in the United States on July 4, 2020
You want some direction on usage? First you'll want to reverse engineer this cheap little board. You won't gain much advantage going to the datasheet. No sir, Hiletgo clearly expects you to beg. You'll get a stuffed board (actually a combination of stuffing and tiny SMD caps and resistors that a microbe couldn't read. You get 5 trimpots with no correlation to function. You get 2 sets of headers with two pins jumpered in each set. Granted it's scarcely $7, but if you like spending money to untie knots, buy it today.
James
Reviewed in the United States on December 30, 2019
Purchased this as a way of testing a power amplifier to see if I could amplify high frequencies. Long story short I got my answer and it does, the freq it generates though is still a mystery to me. There is a capacitor switch that should be controlling what frequency is output. Sadly it does not work as designed and no matter what adjustments I make I can never exceed 39 khz. No manual is provided either so the four other adjustments are a mystery as to what their function is. If you need something just to test if a frequency might be able to go through a device I suppose you could try this but otherwise it is not suitable for anything with real purpose.
rdrewmc
Reviewed in the United States on December 12, 2019
Produces clean sine wave after you adjust the duty cycle. Use regulated power supply as frequency changes with voltage. Frequency also changes with temperature, so not appropriate for precise frequency applications.
Mary Owen
Reviewed in the United States on January 11, 2017
Good product!
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