The PT2399 is a single chip echo processor IC utilizing CMOS technology. The PT2399 is commonly described as a digital, or analog voiced solution. Note: Please check their parameters and pin configuration before replacing them in your circuit. The Company markets its products worldwide. designs, manufactures, and sells integrated circuits (ICs) for multi-media audio, remote control, and other electrical home appliances. These is pinout of PT2399,If you need more pinouts please download PT2399 datasheet.įollowings are PT2399 Symbol, Footprint, and 3D Model.įollowing is schematic of PT2399 Application Circuit. Whereas with the BBD, you can generate the clock with any microcontroller. But it becomes more complicated if you want to precisely control the time with another external circuit, to add a tap tempo for example. This is perfect to control the time with just one potentiometer connected to this pin. You can’t add external memory to it to improve performance with long times.Īnother example, the delay time is only controlled with the current on a pin. The sound quality will therefore be deteriorated over the long delays, causing like the BBD some noise problems.Īnother problem is that the digital part cannot be accessed directly. The memory in the PT2399 is very limited, so the more you want long times, the less information the memory will be able to store. And since it already includes the clock and op-amps, the cost is even lower compared to a BBD circuit. Where a BBD costs from 3€ to more than 20€ for the famous MN3005, you can find a PT2399 between 1 and 2€. The second advantage of the PT2399 is the cost. This results in less problems with aliasing and audible clock noise. The clock frequency is also much higher than the one used with a BBD. Since it integrates many of the components we need, we can make a delay with only the chip and a few components ! Contrary to the BBD which needs a lot of external circuits. The first advantage of the PT2399 is its simplicity of use.
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