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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 low pass 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. The
PT2399
performs
low
distortion
(THD<0.5%@0.5Vrms) and low noise (No<-90dBV)
characteristic for audio purpose, and pin arrangement
and application circuit are optimized for easy PCB
layout and cost saving advantage.
PT2399 Datasheet
