TDA9859 The main part of the preamplifier is an integrated circuit TDA9859, this integrated circuit is controlled via the I2C microprocessor Atmega128. Individual settings of the preamplifier through the keyboard are displayed on the graphical LCD display. Integrated circuit... Electronics Projects, Digital Class D Amplifier Project TAS5613 TDA9859 ATmega128 "audio amplifier circuits, avr project, class d amplifier circuit, ic amplifier, microcontroller projects, " Date 2019/08/04