NJU7089 HIGH-POWER & LOW-VOLTAGE AUDIO POWER AMPLIFIER GENERAL DESCRIPTION PACKAGE OUTLINE The NJU7089 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, NJU7089R and a SD pin permit power down with muting the input signal. The NJU7089 improves high output power compared with other amplifier. NJU7089VC3 NJU7089KV1 NJU7089VP1 FEATURES + Operating Voltage V =1.8 to 5.5V + Operating Current I =3.0mA typ. (V =5V,R =, no signal) DD1 L + I =2.5mA typ. (V =3V,R =, no signal) DD1 L + Output Power P =1.2W typ. (V =5V,R =8,THD=1%) 0 L + P =500mW typ.(V =3.3V,R =8,THD=1%) 0 L Supply Current in Shutdown Mode Thermal Shutdown Circuit Pop Noise Suppression Circuit Over Current Protection Circuit C-MOS Technology Package Outline VSP8 / SSOP20-C3 / ESON8-V1 / HTSSOP24-P1 PIN CONFIGURATION & BLOCK DIAGRAM V+ -IN OUTA +IN OUTB Bypass SD BIAS TSD GND Ver1.4e - 1 - NJU7089 PIN CONFIGURATION VSP8 ESON8-V1 1 8 8 7 6 5 1 2 3 4 (1) * 5 1 2 3 4 8 5 4 7 6 Top View Bottom View (1) * The PAD in the center part on the back is connected with the internal GND, therefore it connects to GND No. Symbol Function 1 SD Shutdown Enable 2 Bypass Reference Voltage 3 +IN Noninverted Input 4 -IN Inverted Input 5 OUTA Output A 6 V+ Supply Voltage 7 GND Ground 8 OUTB Output B SSOP20-C3 1 20 10 11 No. Symbol Function No. Symbol Function No Connect No Connect 1 NC 11 NC No Connect No Connect 2 NC 12 NC No Connect No Connect 3 NC 13 NC 4 SD Shutdown Enable 14 OUTA Output A 5 Bypass Reference Voltage 15 V+ Supply Voltage 6 +IN 16 GND Ground Noninverted Input 7 -IN 17 OUTB Output B Inverted Input No Connect 8 NC 18 NC No Connect No Connect No Connect 9 NC 19 NC No Connect No Connect 10 NC 20 NC - 2 -