Part Number : ETK3699
Function : Digital surround reverb audio processor
Package : DIP 16, SOP 16 type
Manufactures : YAGAO Technology
ETK3699 is a surround reverb sound processing circuit that is mainly used in various audio equipment such as TV, stereo, and karaoke reverb.
Built-in operational amplifier, VCO (Voltage Control OSC), A/DC, D/AC, SRAM (40Kb) and delay time control circuit, it features built-in VCO can simplify the external application circuit and easy to control the oscillation frequency, so as to achieve Fine-tune the effect of delay time. In addition, the ETK3699 has only 16 pins and requires few external components, which facilitates PCB layout and saves costs.
1. Operating voltage: 4.5V to 5.5V
2. Automatic reset function
3. Low noise: echo reverberation mode -85dB; surround sound mode -90dB
4. Low harmonic distortion: echo reverberation mode THD<1%; surround mode THD<0.2%
5. Built-in 40Kb SRAM
6. The VCO frequency can be adjusted by an external resistor
7. ADM algorithm
1. Video player
3. Karaoke reverberator
4. Electronic audio equipment