MUSES72320

MUSES72320 ±18V Operation 2-Channel Electronic Volume  GENERAL DESCRIPTION The MUSES72320 is a ±18V operation 2-channel electronic volume, which is optimized for high-end audio and professional audio applications with advanced circuitry and layout. The MUSES72320 performs low noise and low distortion characteristics and with resistance ladder circuit. All of functions are controlled via three-wired serial bus. Selectable 8-Chip address is available for using four chips on same serial bus line. It’s suitable for highly linear volume control of Hi-fi audio systems.  PACKAGE OUTLINE MUSES72320V  FEATURES  Operating Voltage ±8.5 to ±18V  3-Wired Serial Control Chip Address Select Function  Selectable 8-Chip Address Available for using eight chips on same serial bus line  Low Output Noise *It conforms to the characteristic of an external operational amplifier.  Low Distortion *It conforms to the characteristic of an external operational amplifier.  Volume 0dB to –111.5dB /0.25dBstep, MUTE +31.5 to 0dB / 0.5dBstep  Channel Separation -120dB typ.  Zero Cross Detection circuit Detection  CMOS Technology  Package Outline SSOP32  BLOCK DIAGRAM Ver. 1.0E Zero Cross Detection Z/C V+ D_VDD Control Logic D_REF V- DATA LATCH ADR1 CLOCK ADR0 ADR2 –1– MUSES72320  PIN FUNCTION 32 17 1 16 No. SYMBOL FUNCTION No. 1 Z/C REFL Lch Zero Cross Detection circuit Reference Voltage 17 2 L_REF Lch Reference Voltage 18 3 L+ Lch Opamp non-inverting in...