■ Outline
YAC523 (EVR2) is a 7ch high grade digital volume LSI for high-end audio systems.
Owing to its built-in high-quality sound operational amplifier, output with wide dynamic range and low distortion factor can be obtained.
YAC523 is able to control each channel through a serial data interface in 255 steps at 0.5dB per step, and can allow configuration of a system with 8 channels or more by using a daisy chain connection.
Owing to its zero-cross detection function, the device is able to suppress audible noise that may occur at a quick volume change.

■Features
• Built-in 7channel high sound quality operational amplifier.
• Wide volume range.
    ＋31.5dB〜－95.0dB, MUTE (0.5dB/step, 255 steps)
• Maximum input signal amplitude
    4.2Vrms (± 6V power supply)
• Low distortion (THD)
    0.0004％ typ. (Input=1Vrms@1kHz, Gain=0dB）
• Low residual noise
    1.2μ Vrms typ. (Gain=MUTE, IHF-A)
• Power supply voltage
    ± 4.75V〜± 6.6V
• Silicon gate CMOS process.
• 48-pin plastic LQFP (YAC523-VZ)