MUSES72320V-TE2 Nisshinbo

MUSES72320 18V Operation 2-Channel Electronic Volume GENERAL DESCRIPTION PACKAGE OUTLINE 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 eight chips on same serial bus line. MUSES72320V Its suitable for highly linear volume control of Hi-fi audio systems. 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 Z/C Zero Cross Detection V+ D VDD Control Logic D REF V- DATA LATCH ADR1 CLOCK ADR0 ADR2 Ver. 1.1E 1 MUSES72320 PIN FUNCTION 32 17 1 16 No. SYMBOL FUNCTION No. SYMBOL FUNCTION Lch Zero Cross Detection circuit 1 Z/C REFL 17 D VDD Digital block Power Supply Reference Voltage 2 L REF Lch Reference Voltage 18 DATA Control data signal input Lch Opamp non-inverting input 3 L+ 19 CLOCK Clock signal input connect terminal 4 L REF Lch Reference Voltage 20 LATCH Latch signal input Lch Opamp inverting input connect 5 L- 21 D REF Digital block Reference Voltage terminal 6 L REF Lch Reference Voltage 22 V+ Power Supply (+) 7 OutL Lch output 23 InR Rch input Switching noise rejection capacitor 8 DCCAP L 24 V+ Power Supply (+) (Lch) Switching noise rejection capacitor 9 DCCAP R 25 V - Power Supply (-) (Rch) 10 OutR Rch output 26 InL Lch input 11 R REF Rch Reference Voltage 27 V - Power Supply (-) Rch Opamp inverting input connect Digital block Noise Rejection 12 R- 28 D CAP terminal Capacitor terminal 13 R REF Rch Reference Voltage 29 ADR2 Chip address setting terminal 2 Rch Opamp non-inverting input 14 R+ 30 ADR1 Chip address setting terminal 1 connect terminal 15 R REF Rch Reference Voltage 31 ADR0 Chip address setting terminal 0 Rch Zero Cross Detection circuit Zero Cross Detection circuit ON/OFF 16 Z/C REFR 32 Z/C Reference Voltage setting terminal 2