器件名称: YAC520
功能描述: High Grade Volume Control
文件大小: 363.86KB 共16页
简 介:YAC520
HGVC1
High Grade Volume Control
s Outline
YAC520(HGVC1) is a high grade stereophonic digital volume for high end audio system. It provides wide dynamic range and low distortion as well, and can control individual channels in 256 steps with 0.5 dB per step. The use of 16 bit serial data interface allows daisy chain connection of several devices for multi channel system. Zero Crossing Detection function suppresses audible noise at quick change of the volume. YAC520 operates on a single 5 volt power supply, and it is possible to input signal of up to 7.9Vrms by using three types of connection methods. Development evaluation board, DMB-HGVC1, equipped with PC interface is available.
s Features
q Wide volume range (can be used in three ways) q Adjustment step q Gain Error q Low distortion factor q Low residual noise A: +32.0 to – 95.0dB IN1=IN2 (Input < 2.0Vrms @VDD=5V) B: +29.5 to – 97.5dB IN2=GND (Input < 2.6Vrms @VDD=5V) C: +20.0 to – 107.0dB IN1=GND (Input < 7.9Vrms @VDD=5V) adjustable in 256 steps, with 0.5dB per step ± 0.1dB 0.001% (input=150 mVrms, gain=+16dB) 1 Vrms (gain=- )
s Others
Process Package Power supply voltage Operating temperature Power consumption CMOS process 20 SSOP (YAC520-E) 5V 0 to +70 C 100 mW @VDD=5.0 V
YAC520 CATALOG CATALOG No.: LSI-4AC520A4 2001.12
YAC520
s Block Diagram
VREF + -
LIN2 LIN1 Vref Generator & Reset pulse Generator LOUT
256
VREF
DVSS DVDD L Zero Cross Detection AVSS AVDD R
Reset
ICN TE
Control Register
ZCEN SDATAO 16……
