NJU7084 HIGH-POWER & LOW-VOLTAGE AUDIO POWER AMPLIFIER GENERAL DESCRIPTION PACKAGE OUTLINE The NJU7084 is an audio power amplifier designed for telephone applications. No external coupling capacitors are required because of the differential outputs. The closed loop gain is adjusted by two external resistors, and a SD pin permit power down with muting the input signal. NJU7084R The NJU7084 improves high output power compared with other amplifier. APPLICATION Cell Phone, PHS Portable Telephone, Wireless Telephone White Goods Security Alarm Monitor FEATURES + Operating Voltage V =2.8 to 5.5V + Operating Current I =2.5mA typ. (V =5V,R =, no signal) DD1 L + I =2mA typ. (V =3V,R =, no signal) DD1 L Supply Current in Shutdown Mode I =2 A max. DD2 + Output Power P =1W typ. (V =5V,R =8 ,THD=2%) 0 L + P =400mW typ.(V =3V,R =4 ,THD=2%) 0 L Thermal Shutdown Circuit C-MOS Technology Package Outline VSP8 PIN CONFIGURATION & BLOCK DIAGRAM V+ 1. SD 2. SDTC 3. +IN -IN OUTA 4. -IN AmpA 5. OUTA +IN + 6. V 7. GND 8. OUTB AmpB OUTB SDTC BIAS TSD SD GND -1- NJU7084 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS UNIT + Supply Voltage V +7 V 1) Power Dissipation P 960 * (VSP8) mW D Output Peak Current I 500 mA op + 2) Input Voltage Range V -0.3 to V +0.3 * V IN Operating Temperature Range T -40 to +85 C opr Storage Temperature Range T -40 to +150 C stg 1) * EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 4layers, FR-4) mounting 2) * SD, SDTC, IN+, IN-, OUTA, OUTB terminals. RECOMMENDED OPERATING VOLTAGE RANGE (Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT + Operating Voltage Range V - 2.8 3.0 5.5 V ELECTRICAL CHARACTERISTICS + Amplifier (Ta=25C,V =5V,G =6dB,f=1kHz,R =8 ,Active) V L PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Operating Current 1 I No signal, R =, Active - 2.5 6 mA DD1 L Operating Current 2 I - - 2 DD2 No signal, R =, V =0.25V A L SD Output Power P 1 THD2% 0.8 1 - W O Total Harmonic Distortion THD P=400mW - 0.1 - % O (THD+N) Supply Voltage Rejection C1=1 F,C2=2.2 F PSRR 45 55 - dB Raito Vripple=100mVrms Mute Attenuation MAT Shutdown - 70 - dB Input Resistance R SD Terminal 105 150 195 k SD Output Offset Voltage V V=0V -50 - 50 mV OD IN + (Ta=25C,V =3V,G =6dB,f=1kHz,R =4 ,Active) V L PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Current 1 I - 2.0 4 mA No signal, R =, Active DD1 L I Operating Current 2 No signal, R =, V =0.25V - - 2 A DD2 L SD Output Power P 1 320 400 - mW THD2% O Total Harmonic Distortion THD P=200mW - 0.1 - % O (THD+N) Supply Voltage Rejection C1=1 F,C2=2.2 F PSRR - 55 - dB Raito Vripple=100mVrms Mute Attenuation MAT Shutdown - 70 - dB Output Offset Voltage V V=0V -50 - 50 mV OD IN V : SD Terminal Voltage SD Mode Control (Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT + + High Level Input Voltage V - 0.7V - V IH V Low Level Input Voltage V - 0 - 0.25 IL CONTROL TERMINAL EXPLANATION MODE CONTROL SIGNAL (SD Terminal) STATUS Shutdown L(=V ) IC is standby. IL Active H(=V ) IC is active. IH - 2 -