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NJU7084

JRC
Part Number NJU7084
Manufacturer JRC
Description HIGH-POWER & LOW-VOLTAGE AUDIO POWER AMPLIFIER
Published Jun 13, 2009
Detailed Description NJU7084 HIGH-POWER & LOW-VOLTAGE AUDIO POWER AMPLIFIER s GENERAL DESCRIPTION The NJU7084 is an audio power amplifier d...
Datasheet PDF File NJU7084 PDF File

NJU7084
NJU7084

Overview
NJU7084 HIGH-POWER & LOW-VOLTAGE AUDIO POWER AMPLIFIER s GENERAL DESCRIPTION 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.
The NJU7084 improves high output power compared with other amplifier.
s PACKAGE OUTLINE NJU7084R sAPPLICATION qCell Phone, PHS qPortable Telephone, Wireless Telephone qWhite Goods qSecurity Alarm qMonitor s FEATURES qOperating Voltage qOperating Current qSupply Current in Shutdown Mode qOutput Power qThermal Shutdown Circuit q C-MOS Technology q Package Outline V+=2.
8 to 5.
5V IDD1=2.
5mA typ.
(V+=5V,RL=∞, no signal) IDD1=2mA typ.
(V+=3V,RL=∞, no signal) IDD2=2µA max.
P0=1W typ.
(V+=5V,RL=8Ω,THD=2%) P0=400mW typ.
(V+=3V,RL=4Ω,THD=2%) VSP8 s PIN CONFIGURATION & BLOCK DIAGRAM V+ -IN +IN SDTC ― AmpA ＋ OUTA ― AmpB ＋ OUTB 1.
SD 2.
SDTC 3.
+IN 4.
-IN 5.
OUTA 6.
V+ 7.
GND 8.
OUTB BIAS SD GND TSD -1- NJU7084 s ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage Power Dissipation Output Peak Current Input Voltage Range V+ +7 V PD 960 *1) (VSP8) mW Iop 500 mA VIN -0.
3 to V++0.
3 *2) V Operating Temperature Range Topr -40 to +85 °C Storage Temperature Range Tstg -40 to +150 °C *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.
s RECOMMENDED OPERATING VOLTAGE RANGE (Ta=25°C) PARAMETER SYMBOL TEST CONDITION Operating Voltage Range V+ - MIN.
TYP.
MAX.
UNIT 2.
8 3.
0 5.
5 V s ELECTRICAL CHARACTERISTICS q Amplifier (Ta=25°C,V+=5V,GV=6dB,f=1kHz,RL=8Ω,Active) PARAMETER SYMBOL TEST CONDITION Operating Current 1 Operating Current 2 Output Power Total Harmonic Distortion (THD+N) IDD1 IDD2 PO1 THD No signal, RL=∞, Active No signal, RL=∞, VSD=0.
25V THD≤2% PO=400mW Supply Voltage Rejec...


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