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PT2399

DIP-16 Audio Interface ICs ROHS

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PT2399 General Description

The PT2399 stands as a CMOS echo/delay processor crafted by Princeton Technology Corp. This digital chip boasts an Analog to Digital Converter (ADC), 44 kilobytes of RAM for sample storage, and a Digital to Analog Converter (DAC). Originally conceived as a straightforward solution for incorporating delay, reverb, and echo into karaoke and entertainment setups, its popularity skyrocketed within the guitar pedal community. This surge in interest can be attributed to its capacity to replicate Bucket Brigade Device (BBD)-based delay circuits, affordability, convenient through-hole packaging, 5V power supply compatibility, and resilience to modifications.

Beyond its initial design intent, the PT2399 has proven itself as a remarkable sound solution through meticulous design and fine-tuning. Renowned effects modules, such as the Belton/Accu-Tronics reverb module, Danelectro FAB-Echo, and the Rebote Delay, all leverage this chip as the central element of their circuits.

The PT2399 chip's official datasheet from Princeton Technology is somewhat ambiguous, leaving many of the internal functions unexplained. This lack of detail has, however, spurred creativity and innovative thinking, encouraging modifications and out-of-the-box solutions. This article aims to delve deeper into the workings of this chip, providing additional insights and information about its functionality.

Notably, the PT2399 offers a delay range spanning from a minimum of 30 milliseconds to a maximum of 340 milliseconds. Furthermore, this range can be extended up to 1 second, albeit at the expense of sound quality. This versatility renders the PT2399 an ideal choice for crafting delay, echo, and reverb effects in various audio applications.

PT2399 Manufacturer

The PT2399 is a digital echo audio processing chip manufactured by Princeton Technology Corp (PTC). Widely employed in audio effects circuits, particularly in delay and reverb effects, it has become a common integrated circuit in audio devices. Its versatile design makes it suitable for various audio processing applications, including sound systems and various music electronic devices.


PT2399 Pin Configuration

PT2399 Pin Configuration

PT2399 Surround/Delay

PT2399 Surround


pt2399 pt2399

Key Features

  • CMOS Technology
  • Least External Components
  • Auto Reset Function
  • Low Noise, No<-90dBV Typical
  • Low Distortion, THD<0.5% Typical
  • External Adjustable VCO
  • Available in 16 pins, DIP or SOP 

PT2399 Datasheet PDF

Download PT2399 Datasheet PDF here>>

pt2399 pt2399

Application

  • Video Tape Recorder
  • Video Compact Disk
  • Television
  • CD Player
  • Car Stereo
  • KARAOKE Mixer
  • Electronic Musical Instrument
  • Audio Equipment with Echo Processor

PT2399 Block Diagram

PT2399 Block Diagram

PT2399 Application Circuit

PT2399 Application Circuit

pt2399 pt2399

Specifications

Pin Count 16 Released Date Dec 7, 2015
Last Modified Date Mar 7, 2023 4:10 PM UTC

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Ratings and Reviews

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T
T**n 01/30/2023

avaq is very good !

16
O
O**t 07/04/2020

Blinks and has sound. Need more time to test.

10
J
J**n 04/08/2020

Order received, work or not not checked.

19

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1+ $0.692 $0.69
10+ $0.581 $5.81
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100+ $0.436 $43.60
500+ $0.403 $201.50
1000+ $0.386 $386.00

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