General Description

　MUSES series are high grade and high quality audio special devices developed for audiophiles to provide "true sound" that faithfully reproduce the original sound and pursue the sound resonating with sensibilities.
　The MUSES05 is an audio special operational amplifier that can faithfully reproduce music information that could not be reproduced by conventional operational amplifiers and discrete amplifiers, and is specialized for enjoying music.

MUSES and this logo are trademarks of Nisshinbo Micro Device Co., Ltd.

Features

• ■High quality sound
  • The MUSES05 eliminated productivity constraints that prevent improving sound quality and achieved high quality sound using circuits, materials, and assembly technology that emphasize sound quality.

・High quality audio technology of MUSES05

Features	Details	Images
High quality audio process	Tuned process for audio and developed special transistors that emphasize sound quality.
High quality audio circuit technology	Full-balanced differential amplifier circuit improves transient response, dynamic range and distortion characteristics.
	In order to reduce the mutual interference between the front stage and the rear stage in the amplifier to a minimum, the input and output stages of the circuit are separated by 2 chips.
High quality audio materials	High-purity oxygen-free copper is used for the lead frame to achieve low loss and high heat dissipation.

• ■High performance
  • Achieves excellent audio characteristics such as ultra-low distortion, low noise, and high slew rate.

• 【Characteristics】

  • Input stage/number of circuits	J-FET/1 circuit
    Operating power supply	±3.5V to ±18V
    THD	0.00003% typ. (f=1kHz)
    Equivalent input noise voltage	7.5nV/√Hz typ. (f=1kHz)
    Slew rate	SR=40V/μs typ.
    Gain bandwidth product	12MHz typ.

• ■Small package
  • High-purity oxygen-free copper frame achieves high quality sound and high heat dissipation in a small package.

Application

• High-end audio equipment
• Professional audio equipment
• car audio systems
• Portable audio players

Production Schedule

In mass production, General sales are scheduled around October 2021