Title :
A volume and tone control IC for Hi-Fi audio
Author :
Sato, Maki ; Suzuki, Kazuo ; Suzuki, Tadao ; Akutsu, Kinya
Abstract :
A monolithic IC which contains dual-channel volume control circuits, tone control circuits, and function switches is discussed. The IC has excellent characteristics, such as total harmonic distortion of less than 0.002 percent (at 1 kHz, 300 mV rms input signal) and a signal-to-noise ratio of more than 100 dB (at 300 mV rms input signal, A weighting). SIPOS-gate MOSFET´s and polysilicon ion implanted resistors are employed, yielding good signal level accuracy and low distortion.
Keywords :
Audio equipment; Field effect integrated circuits; Linear integrated circuits; audio equipment; field effect integrated circuits; linear integrated circuits; Attenuation; Attenuators; Decoding; Integrated circuit noise; Logic circuits; MOSFET circuits; Monolithic integrated circuits; Resistors; Semiconductor device noise; Switches;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1981.1051662
