Description: The PT2399 is a single chip echo processor IC utilizing CMOS technology. Which accept analog audio input signal, a high sample rate ADC transfer the analog signal into a bit stream then storage to internal 44Kbit RAM, after processing the bit stream will de-modulate by DAC and lowpass filter. Overall delay time is determined by internal VCO clock frequency, and user can easy to change the VCO frequency by changing the external resistance. application circuit are optimized for easy PCB layout and cost saving advantage.
Characteristic for audio purpose, and pin arrangement and application circuit are optimized for easy PCB layout and cost saving advantage.
Power Supply (V): 4.5~5.5
Internal RAM: 44Kbit
SNR (dB): 90
Special Feature: Built-in VCO, Delay Time Variable
| APPLICATIONS • KARAOKE Mixer • CD/DVD Player/Recorder • Multimedia TV • Car Entertainment System • Computer Audio System • Portable Audio System • Home Therater Audio System • Music Instrument effecter • Electronics Toy | FEATURES • CMOS technology • Least external components • Auto reset Function prevent POP noise • Low noise, SNR better than 90dB (typical) • Low distortion, THD= 0.5%(typical) • User adjustable VCO clock frequency. |
Youtube sample video:
DIY home made delay pedal with the pt2399 chip