NJU72322V-TE1 Nisshinbo

NJU72322 18V OPERATION HIGH QUALITY AUDIO VOLUME FEATURES GENERAL DESCRIPTION Operating Voltage Analog 10 to 18V The NJU72322 is a 18V operation high quality Digital +3.0 to +5.5V audio volume. It provides low output noise and low distortion characteristics. In addition, employing 3-Wired Serial Control external op-amps as output signal buffers, it offers Selectable Chip Address designers variety of circuit design. Available for using two chips on same serial bus line. All of functions are controlled via three-wired Low Output Noise * serial bus. Selectable chip address is available for Low Distortion * using two chips on same serial bus line. Volume 0 to -111.5dB / 0.5dB step, Mute The NJU72322 is suitable for High-end audio +21 to 0dB / 3dB step equipment and professional audio equipment. Zero Cross Detection Package Outline SSOP32 * It conforms to the characteristics of an external operational amplifier. APPLICATION AUDIO VOLUME VARIATION Hi-Fi Audio Application OPERATING VOLTAGE PRODUCT NAME Professional Audio Application 8.5 to 18V MUSES72320 10 to 18V MUSES72323 APPLICATION CIRCUIT + NJU72322 + + V Zero Cross Detection D IN Control Logic D REF - V DATA LATCH ADR0 CLOCK Ver.3.0 - 1 - www.njr.com NJU72322 PIN CONFIGURATION 32 17 1 16 PIN PIN SYMBOL DESCRIPTION SYMBOL DESCRIPTION NO. NO. 1 NC No connection 17 NC No connection Lch switching noise rejection capacitor 2 L CAP 18 DATA Control data signal input connection terminal 3 OUTL Lch output 19 CLOCK Clock signal input Lch Op-amp 4 L- 20 LATCH Latch signal input inverting input connection terminal Power supply (+) digital block 5 L REF Lch reference voltage 21 D V+ (+10V to +18V) Lch Op-amp 6 L+ 22 INR Rch input non-inverting input connection terminal Power supply (+) Rch 7 L REF Lch reference voltage 23 AR V+ (+10V to +18V) Power supply (+) Lch 8 L REF Lch reference voltage 24 AL V+ (+10V to +18V) Power supply (-) Rch 9 R REF Rch reference voltage 25 AR V- (-10V to -18V) Power supply (-) Lch 10 R REF Rch reference voltage 26 AL V- (-10V to -18V) Rch Op-amp 11 R+ 27 INL Lch Input non-inverting input connection terminal Power supply (-) digital block 12 R REF Rch reference voltage 28 D V- (-10V to -18V) Rch Op-amp Digital block noise rejection capacitor 13 R- 29 D CAP inverting input connection terminal connection terminal 14 OUTR Rch output 30 ADR0 Chip address setting terminal Rch switching noise rejection capacitor 15 R CAP 31 NC No connection connection terminal Digital block power supply 16 D IN 32 D REF Digital block reference voltage (+3.0V to +5.5V) Ver.3.0 - 2 - www.njr.com