PCT普诚 PT2399 回声处理器芯片
DESCRIPTION
The PT2399 is a single chip echo processor ICutilizing CMOS technology. Which accept analogaudio input signal, a high sample rate ADC transferthe analog signal into a bit stream then storage tointernal 44Kbit RAM, after processing the bit streamwill de-modulate by DAC and low pass filter. Overalldelay time is determined by internal VCO clockfrequency, and user can easy to change the VCOfrequency by changing the external resistance. ThePT2399 performs low distortion(THD<0.5%@0.5Vrms) and low noise (No<-90dBV)characteristic for audio purpose, and pin arrangementand application circuit are optimized for easy PCBlayout and cost saving advantage.
FEATURES
● CMOS technology
● L east 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.
APPLICATIONS
● KARAOKE Mixer
● CD/DVD Player/Recorder
● Multimedia TV
● Car Entertainment System
● Music Instrument effecter
● Electronics Toy
