summary
NJU72315 / NJU72322 is a high-performance volume control IC.
The composition of the volume control system can be used with an external amplifier, which improves the freedom of design.
NJU72315 adopts a small package that is most suitable for portable audio equipment, and achieves low-voltage operation, ultra-low noise, and ultra-low distortion.
NJU72322 is a product that follows the development concept of MUSES series products and further improves the productivity.
NJU72315 / NJU72322 are most suitable for advanced audio equipment, professional audio equipment and portable audio equipment that require high performance and high sound quality.
Features
high performance
NJU72315
-Low voltage operation Analog: ±3.0 to ±5.5V, Digital: +1.6 to +3.6V
-Low noise/low distortion ※1
-SNR 130dB, achieving ultra-low noise
-Combination of zero-crossing detection circuit ※2, soft step circuit ※3, reducing the noise generated by volume switching
-Small package WCSP16 (1.9mm x 1.9mm x 0.41mm)
NJU72322
-The maximum working voltage is ±18V, realizing high dynamic range
-Adjustable in 0.5dB steps
-Low noise/low distortion ※1
Free sound quality design
Although conventional semiconductor volume control devices have the advantage of a smaller balance between channels than mechanical volume controls such as variable resistors, the sound quality depends on the built-in amplifier.
NJU72315 / NJU72322 is not the conventional built-in operational amplifier structure, but uses an external operational amplifier, which improves the freedom of sound quality design. In addition, it can be used in combination with the MUSES series of operational amplifier products to realize a higher-quality audio system.
application
Advanced audio equipment
Professional audio equipment
Car audio system
Portable audio equipment
