NJU8711

NJU8711 www.DataSheet4U.com 3V Operation Switching Driver for Class D Amplifier GENERAL DESCRIPTION The NJU8711 is a Switching Driver for class D Amplifier including BEEP and BPZ (Bipolar Zero) output circuits. It converts 1bit digital signal input, such as PWM or PDM signal, to analog signal output with simple external LC low-pass filter. The NJU8711 realizes very high power-efficiency by class D operation. Therefore, It is suitable for portable audio set and others. PACKAGE OUTLINE NJU8711V FEATURES 2-channel 1bit Audio Signal Input Standby(Hi-Z), BPZ Control Internal BPZ Charger Beep Function Operating Voltage : 2.0V to 3.6V CMOS Technology Package Outline : SSOP10 PIN CONFIGURATION EN1 MCK VDD BEEP EN2 1 2 3 4 5 10 9 8 7 6 OUT2 IN2 VSS IN1 OUT1 BLOCK DIAGRAM VDD VSS BPZ Output IN1 OUT1 BEEP IN2 Output Control BPZ Output OUT2 MCK EN1 EN2 Ver.2004-06-02 -1- NJU8711 www.DataSheet4U.com TERMINAL DESCRIPTION No. 3 8 2 1 5 7 9 4 SYMBOL VDD VSS MCK EN1 EN2 IN1 IN2 BEEP I/O I I I I Function Power Supply, VDD=3V Power GND, VSS=0V Master Clock Input Terminal The condition of the data input terminal is fetched with the rising edge of this signal. Output Control Terminal Output circuit is selected by the condition of this terminal. Audio Signal Input Terminal 1-bit Audio Signal inputs into this terminal. Beep Signal Input Terminal Beep signal inputs into this terminal. Output Terminal When Output Terminal selects Audio Signal, IN1 terminal input data outputs from...