YAC523 Datasheet, PDF (1/16 Pages) YAMAHA CORPORATION – Electric Variable Resistance 2

YAC523
EVR2
Electric Variable Resistance 2
■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
ɾBuilt-in 7channel high sound quality operational amplifier.
ɾWide volume range.
ʴ31.5dB〜ʵ95.0dB, MUTE (0.5dB/step, 255 steps)
ɾMaximum input signal amplitude
4.2Vrms (±6V power supply)
ɾLow distortion (THD)
0.0004％ typ. (Input=1Vrms@1kHz, Gain=0dBʣ
ɾLow residual noise
1.2μVrms typ. (Gain=MUTE, IHF-A)
ɾPower supply voltage
±4.75V〜±6.6V
ɾSilicon gate CMOS process.
ɾ48-pin plastic LQFP (YAC523-VZ)
YAC523CATALOG
CATALOG No.:LSI-4AC523A2
2003.5