NJU8759A Analog Signal Input Monaural, Filter Less 3.0W Class-D Amplifier FEATURES (Typical value, T = 25C) DESCRIPTION a Supply Voltage 1.8V to 5.5V The NJU8759A is an analog signal input monaural filterless + High Power (V = 5V, THD+N = 10%) Class-D power amplifier. Operating voltage from 1.8V to 5.5V - RL = 8 1.7W single supply can be used with 2-cell batteries. - R = 4 3.0W L NJU8759A features Class-D operation with high output Output LC Filterless capability, is 1.7W output (8 load) and 3.0W output (4 load). Built-in Pop Noise Reduction (Turn on / Turn off) The BTL output configuration can reduce the coupling Analog Differential Input / PWM Output capacitor. Furthermore, the output LC filterless architecture, + Low Supply Current (V = 3.6V) 2.7mA which was not available in conventional Class-D, reduces - Standby Current 1A max. external parts and PCB size. Overcurrent Protection Circuit Thermal Shutdown Circuit NJU8759A operates from a single power supply of 1.8 V and Undervoltage Lock Out circuit (UVLO) 1 A maximum standby current, and is ideal for small portable Package HSOP8 devices and portable audio devices, as well as alarm devices and security devices that require low power and high output. APPLICATIONS The NJU8759A is available in an 8-pin HSOP8 package with Security Equipment exposed pads for heat dissipation and a 1.45mm x 1.45mm Portable Equipment wafer level package NJU8759WLC1 (see NJU8759 data Portable Audio sheet) for space saving devices. MONAURAL POWER AMPLIFIER VARIATION Description NJU72060 0.5W Class-AB Amplifier NJU7089 1.2W Output 1.8V Operate Class-AB Amplifier NJU8759/A 3.0W Output 1.8V Operate Filter-Less Class-D Amplifier APPLICATION CIRCUIT Supply Voltage C3= C4= + V = 1.8V to 5.5V 10 F 0.1 F VDD UVLO OSC TSD INP OUTP Analog Input C1= 0.47 F Single-end / Differential PWM C2= 0.47 F INN OUTN LC Filterless STBYB OCP Standby Control CTRL LGC PWM Output High: Active. Low: Standby C5= VSS VSSO ON/OFF Pop-Noise Reduction 1 nF 1.8V Compatible Thresholds Ver.1.0 - 1 - www.njr.com NJU8759A PIN CONFIGURATION Top View OUTP 1 8 VSSO VDD 2 7 OUTN Exposed Pad on STBYB 3 6 VSS Underside INN 4 5 INP PIN NO. NAME FUNCTION 1 OUTP Positive output 2 VDD Power supply 3 STBYB Standby control 4 INN Negative input 5 INP Positive input 6 VSS Analog GND 7 OUTN Negative output 8 VSSO Power GND Connect exposed pad to the GND. Exposed pad is electronically connected to the backside of the die, but cannot be function as GND. PRODUCT NAME INFORMATION NJU8759A GM1 (TE1) Part Number Package Taping Form ORDERING INFORMATION HALOGEN- TERMINAL WEIGHT MOQ PRODUCT NAME PACKAGE RoHS MARKING FREE FINISH (mg) (pcs) NJU8759AGM1 (TE1) HSOP8 Yes Yes Pure Sn 8759A 81 3000 Ver.1.0 - 2 - www.njr.com