#Simple delay timer latch circuit full version#
#Simple delay timer latch circuit full#
#Simple delay timer latch circuit mods#

I’ll describe some more features in the future. The quality of the IC’s output noticeably degrades. The internal memory is limited to 44K, which overall limits the quality of the repeats at certain settings. Be very careful handling your PT2399, as CMOS devices are prone to being damaged by static electricity. The familiar DIP packaging makes integrating it into through-hole designs an easy task.

They’re often used for prototyping simple circuit in lieu of using a microcontroller. CMOS is a technology of ICs that, simply put, plays nice with other CMOS device. Circuit design is all about tradeoffs, and distortion can somewhat warm a tone up.īecause the PT2399 is CMOS, interfacing with this circuit is very experimenter-friendly. “PT2399 boast of very low distortion (THD<0.5%)” – this number given by the datasheet authors is very suspicious given my own experience, but let your ears decide whether the distortion is acceptable.

#Simple delay timer latch circuit mods#

See the Mods section later in this guide for some of the ideas you can try out! Whenever I see potentiometers, I think modification.

You’ll notice that the input signal will modulate in pitch as you sweep the potentiometer. If you use the PT2399 Echo Application’s Pin 6 resistor-potentiometer configuration, PT2399 Pin 6 Potentiometer Resistor This is no accident, as the PT2399 has a lot of high-frequency digital noise that has a way of getting into the audio path and is tamed through filtering courtesy of the on-chip op amps. It’s a digital delay that mimics analog delays quite well, giving a warm bassy filter to the overall delay repeats. What I will do is try and express how the PT2399 actually sounds. I’m not going to repeat the datasheet description/marketing here. PT2399_datasheet_(full_version) PT2399 Features

#Simple delay timer latch circuit full#

You can download the full datasheet below: Throughout this page, I will use snippets from the full datasheet to explain some of the results of my experience with the PT2399.

#Simple delay timer latch circuit full version#

Unfortunately, the full version is hard to find amongst the most popular Google results for “PT2399 datasheet” an abridged version that edits out the good and useful parts is abundant. Princeton, the company that manufacturers the PT2399 Echo Audio Processor IC, made a great datasheet to accompany their product. PT2399 DatasheetĪlways get a datasheet for any unfamiliar components before you do any circuit work! You don’t want to destroy your part before you get a chance to hear it! For you circuit tweakers out there, I will include a Mods section to get you going in the right direction.įirst off, let’s take a look at the datasheet to learn more about the PT2399. A stock circuit from the datasheet can nearly complete a guitar pedal project, and there are load of other applications for projects that require an analog-sounding digital delay (more on this later). The PT2399 is one of the most rewarding chips a DIYer can experiment with.