NJU72315 ULTRA-LOW NOISE, ULTRA-LOW DISTORTION AUDIO VOLUME FEATURES GENERAL DESCRIPTION Operating Voltage Analog: 3.0 to 5.5V The NJU72315 is a high performance low voltage Digital: +1.6 to +3.6V operation 2-channel audio volume. It provides low noise 2 I C BUS Control and low distortion characteristics. In addition, employing Volume 0 to -62dB / 2dB step, Mute external op-amps as output signal buffers, they offer Input Impedance 1k typ. designers variety of circuit design. Low Distortion 0.00013% typ. The NJU72315 is suitable for Hi-Fi portable audio High SNR 130dB typ. (V =2Vrms, Volume=0dB) systems. O Zero Cross Detection Shutdown Mode Package Outline WCSP16 APPLICATION Portable Audio Player Portable Audio Amplifier Hi-Fi Smartphone/Tablet APPLICATION CIRCUIT NJU72315 RefA OutA Output Ach InA + Input Ach V + Zero Cross Soft-Step AGND + InB - V Input Bch OutB RefB Output Bch VDD SCL + Control SDA Logic ADR DGND Ver.2.0 - 1 - www.njr.com NJU72315 PIN CONFIGURATION TOP VIEW BOTTOM VIEW A1 B1 C1 D1 D1 C1 B1 A1 A2 B2 C2 D2 D2 C2 B2 A2 A3 B3 C3 D3 D3 C3 B3 A3 A4 B4 C4 D4 D4 C4 B4 A4 PIN NO. SYMBOL DESCRIPTION A1 InB Bch Input A2 RefB1 Bch Reference Voltage 1 A3 ADR Chip address setting terminal A4 OutB Bch Output B1 V- Analog block Power Supply (-) B2 RefB2 Bch Reference Voltage 2 B3 TEST TEST terminal B4 DGND Digital block Ground C1 InA Ach Input C2 V+ Analog block Power Supply (+) C3 RefA1 Ach Reference Voltage 1 C4 OutA Ach Output D1 RefA2 Ach Reference Voltage 2 D2 SCL I2C Clock terminal D3 SDA I2C Data Input / Acknowledge Output terminal D4 VDD Digital block Power Supply MARK INFORMATION NJU72315 WLC1 (TE1) Part Number Package Taping Form ORDERING INFORMATION HALOGEN- TERMINAL WEIGHT MOQ PART NUMBER PACKAGE RoHS MARKING FREE FINISH (mg) (pcs) NJU72315WLC1 (TE1) WCSP16 Yes Yes SnAnCu 72315 4.6 3,000 Ver.2.0 - 2 - www.njr.com