Pt2399 Reverb Schematic. The pt2399 basic echo circuit is the one where the delayed output is fed back to the input to produce echoes. Pt2399 echo application circuit the second schematic princeton has on their datasheet is the pt2399 surround delay application circuit.
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However for a subtle guitar reverb significantly smaller delays will be required. This digital chip includes an adc analog to digital converter 44kb of ram to store the samples and a dac digital to analog converter. We will update with the final value right in this page when the circuit has been successfully tested.
The pt2399 is a cmos echo delay processor developed by princeton technology corp.
I believe what they mean by surround is reverb which is actually sort of achievable more on this later in the mods section if you set your circuit up right. In my schematic and board layout the two. The pt2399 basic echo circuit is the one where the delayed output is fed back to the input to produce echoes. 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.
