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NJU7084
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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.
sAPPLICATION qCell Phone, PHS qPortable Telephone, Wireless Telephone qWhite Goods qSecurity Alarm qMonitor
s PACKAGE OUTLINE
NJU7084R
NJU7084M
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=2A max. P0=1W typ. (V+=5V,RL=8,THD=2%) P0=400mW typ.(V+=3V,RL=4,THD=2%) VSP8, DMP24
s PIN CONFIGURATION & BLOCK DIAGRAM
V+
-IN
AmpA
OUTA
+IN
(VSP8) 1. SD 2. SDTC 3. +IN 4. -IN 5. OUTA 6. V+ 7. GND 8. OUTB (DMP24) 1. NC 2. NC 3. NC 4. NC 5. SD 6. SDTC 7. +IN 8. -IN
AmpB
SDTC
OUTB
BIAS
TSD SD GND
9. 10. 11. 12. 13. 14. 15. 16.
NC NC NC NC NC NC NC NC
17. 18. 19. 20. 21. 22. 23. 24.
OUTA V+ GND OUTB NC NC NC NC
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NJU7084
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s ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL Supply Voltage V+ Power Dissipation Output Peak Current Input Voltage Range Operating Temperature Range Storage Temperature Range
1)
PD Iop VIN Topr Tstg
RATINGS +7 960 *1) (VSP8) 1350 *2) (DMP24) 500 -0.3 to V +0.3 * -40 to +85 -40 to +150
+
3)
UNIT V mW mA V C C
* EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 4layers, FR-4) mounting 2) * EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 2layers, FR-4) mounting 3) * SD, SDTC, IN+, IN-, OUTA, OUTB terminals.
s RECOMMENDED OPERATING VOLTAGE RANGE (Ta=25C) PARAMETER SYMBOL TEST CONDITION + Operating Voltage Range V s ELECTRICAL CHARACTERISTICS q Amplifier (Ta=25C,V+=5V,GV=6dB,f=1kHz,RL=8,Active) PARAMETER SYMBOL TEST CONDITION Operating Current 1 IDD1 No signal, RL=, Active IDD2 Operating Current 2 No signal, RL=, VSD=0.25V Output Power PO1 THD2% Total Harmonic Distortion THD PO=400mW (THD+N) Supply Voltage Rejection C1=1F,C2=2.2F PSRR Raito Vripple=100mVrms Mute Attenuation MAT Shutdown Input Resistance RSD SD Terminal Output Offset Voltage VOD VIN=0V (Ta=25C,V+=3V,GV=6dB,f=1kHz,RL=4,Active) PARAMETER SYMBOL TEST CONDITION Operating Current 1 IDD1 No signal, RL=, Active IDD2 Operating Current 2 No signal, RL=, VSD=0.25V Output Power PO1 THD2% Total Harmonic Distortion THD PO=200mW (THD+N) Supply Voltage Rejection C1=1F,C2=2.2F PSRR Raito Vripple=100mVrms Mute Attenuation MAT Shutdown Output Offset Voltage VOD VIN=0V q Mode Control (Ta=25C) PARAMETER SYMBOL High Level Input Voltage VIH Low Level Input Voltage VIL
MIN. 2.8
TYP. 3.0
MAX. 5.5
UNIT V
MIN. 0.8 45 105 -50
TYP. 2.5 1 0.1 55 70 150 -
MAX. 6 2 195 50
UNIT mA A W % dB dB k mV
MIN. 320 -50
TYP. 2.0 400 0.1 55 70 -
MAX. 4 2 50
UNIT mA A mW % dB dB mV
VSD: SD Terminal Voltage
TEST CONDITION -
MIN. 0.7V+ 0
TYP. -
MAX. V+ 0.25
UNIT V
s CONTROL TERMINAL EXPLANATION MODE CONTROL SIGNAL (SD Terminal) Shutdown L(=VIL) Active H(=VIH)
STATUS IC is standby. IC is active.
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NJU7084
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s TEST CIRCUIT TEST CIRCUIT1 (Operating Current IDD1, IDD2)
Rf=20k +
A
10F
Ci =1F Vin
Ri=20k -IN +IN C1=1F 50k

OUTA 20k RL 4/8 20k
AmpB
AmpA
OUTB
C2=2.2F
SDTC
75k 50k
BIAS
+ SD IDD1:SD=H IDD2:SD=L GND
TSD
TEST CIRCUIT2 (Output Power PO, Total Harmonic Distortion THD)
Rf=20k
+
Ci =1F Vin
Ri=20k -IN +IN C1=1F
OUTA RL 4/8
AmpA
V
AmpB
OUTB
C2=2.2F
SDTC
BIAS
+ SD GND
TSD
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s TEST CIRCUIT TEST CIRCUIT3 (Supply Voltage Rejection Raito PSRR)
Rf=20k
10F
+
Ci =1F Ri=20k -IN +IN C1=1F 50k

OUTA 20k RL 4/8 20k
AmpB V
AmpA
OUTB
C2=2.2F
SDTC
75k 50k
BIAS
+ SD GND
TSD
TEST CIRCUIT4 (Output Offset Voltage VOD)
Rf=20k +
10F
Ci =1F
Ri=20k -IN
Vin C1=1F
OUTA 20k RL 4/8 20k
+IN
AmpA
50k
V
AmpB
OUTB
C2=2.2F
SDTC
75k 50k
BIAS
+ SD GND
TSD
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s EQUIVALENT CIRCUIT
PIN No.
DMP 24 VSP 8
SYMBOL
EQUIVALENT CIRCUIT
TERMINAL VOLTAGE
Note
5
1
SD
47.5
-
150k
6
2
SDTC
47.5
300k
2V+/3
600k
67.5
7
3
+IN
75k
V+/2
8
4
-IN
67.5
V+/2
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NJU7084
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s EQUIVALENT CIRCUIT
PIN No.
DMP 24 VSP 8
SYMBOL
EQUIVALENT CIRCUIT
TERMINAL VOLTAGE
Note
17 20
5 8
OUTA OUTB
V+/2
18 19
6 7
V+ GND
-
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NJU7084
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s APPLICATION CIRCUIT
Rf=20k
+
10F
Ri=20k Vin Ci =0.47F +IN C1=1F -IN
OUTA
AmpA
20k
50k
20k
AmpB
C2=2.2F
SDTC
OUTB
75k 50k
BIAS
Shutdown Control
TSD SD GND
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sTYPICAL CHARACTERISTICS
Supply Current vs Supply Voltage RL=OPEN,Ta=25OC 5 4.5 4
Supply Current[mA]
3.5 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 Supply Voltage[V] 6 7
Supply Current vs Temparature V+=3V Gv=6dBRL=OPEN 3 3
Supply Current vs Temparature V+=5V Gv=6dBRL=OPEN
2.5
2.5
2
Supply Current[mA]
0 50 Temparature[oC] 100 150
Supply Current[mA]
2
1.5
1.5
1
1
0.5
0.5
0 -50
0 -50
0
50 Temparature[oC]
100
150
Supply Current vs Temparature(STANBY) V+=3V,RL=OPEN,VSD=0.25V 1.E+00 1.E-01 1.E-02 1.E-03
Supply Current vs Temparature(STANBY) V+=5V,RL=OPEN,VSD=0.25V 1.E+00 1.E-01 1.E-02 1.E-03
Supply Current[A]
Supply Current[A]
1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 1.E-11 -50 0 50 Temparature[oC] 100 150
1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 1.E-11 -50 0 50 Temparature[oC] 100 150
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NJU7084
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sTYPICAL CHARACTERISTICS
VSD pin Voltagevs Supply Current(Ta) V+=3V RL=OPEN 1.E-02 1.E-03 1.E-04
Supply Current[A] Supply Current[A]
1.E-02 1.E-03 1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 1.E-11 VSD pin Voltage vs Supply Current(Ta) V+=5V RL=OPEN
1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 1.E-11 1.E-12 0 1 2 3 VSD pin Voltage[V]
Ta=85 C Ta=25 C Ta=-40 C
o o o
Ta=85oC Ta=25oC Ta=-40oC
0 1 2 3 4 5
VSD pin Voltage[V]
Voltage Gain.Phase vs Frequency V+=3V Gv=40dBRL=4 Ta=25oC 60 Phase 40 135
Voltage Gain[dB]
Voltage Gain.Phase vs Frequency V+=5V Gv=40dBRL=8 Ta=25oC
225 180
60
225 180
40
Phase
135 90
90
Voltage Gain[dB] Phase[deg.]
20
45 0
0 0 -45 -90
0 Gain
-45 -90 -135 -180
-20
-20
Gain
-135 -180
-40 -225 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08 Frequency[Hz]
-40 -225 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08 Frequency[Hz]
Voltage Gain.Phase vs Frequency V+=3V,Gv=40dB,RL=OPEN, Ta=25oC 60
Phase
Voltage Gain.Phase vs Frequency V+=5V,Gv=40dB,RL=OPEN, Ta=25oC
225 180 135 90
60
225 180
40
40
Phase
135 90
Voltage Gain[dB]
20
45 0
Voltage Gain[dB]
20
45 0
0
Gain
-45 -90 -135 -180
0
-45 -90
-20
-20
Gain
-135 -180
-40 1.E+02
1.E+03
1.E+04 1.E+05 1.E+06 Frequency[Hz]
1.E+07
-225 1.E+08
-40 1.E+02
1.E+03
1.E+04 1.E+05 1.E+06 Frequency[Hz]
1.E+07
-225 1.E+08
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Phase[deg.]
20
45
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sTYPICAL CHARACTERISTICS
Total Harmonic Distortion vs Output Pow er(Ta) V +=3V,Gv=6dB,f=1kHz,RL=4 100 100 Total Harmonic Distortion vs Output Pow er(Ta) V+=5V,Gv=6dB,f=1kHz,RL=8
10
Ta=85oC
10 Ta=85oC
THD+N[%]
THD+N[%]
1
Ta=-40 C
o
1
Ta=-40oC
0.1
Ta=25oC
0.1 Ta=25oC
0.01
0.01
0.001 0.001
0.01
0.1 Output Pow er[W]
1
10
0.001 0.001
0.01
0.1 Output Pow er[W]
1
10
Total Harmonic Distortion vs Output Pow er (f) V+=3V,Gv=6dB,,RL=4,BW:~80kHz 100 100
Total Harmonic Distortion vs Output Pow er (f) V+=5V,Gv=6dB,RL=8,BW:~80kHz
10 THD+N[%] THD+N[%] f=20kHz 1 f=1kHz 0.1
10
1
f=20kHz
0.1
f=1kHz
0.01 0.001
0.01
0.1 Output Pow er[W]
1
10
0.01 0.001
0.01
0.1 Output Pow er[W]
1
10
Total Harmonic Distortion vs Output Pow er (f) V+=3V,Gv=6dB,,RL=8,BW:~80kHz 100
10 THD+N[%]
f=20kHz 1
f=1kHz 0.1
0.01 0.001
0.01
0.1 Output Pow er[W]
1
10
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sTYPICAL CHARACTERISTICS
Output Voltage vs Supply Voltage (THD) RL=4,Ta=25oC 1.2 1 THD=10%
Output Voltage vs Supply Voltage (THD) RL=8,Ta=25oC 2
1.5 Output Power[W] THD=10% 1
Output Power[W]
0.8
0.6 0.4 0.2 0 0 1 2 3 4 5 Supply Voltage[V] THD=1%
0.5
THD=1%
0 0 1 2 3 4 5 6 Supply Voltage[V]
Pow er Dissipation vs Output Pow er V+=5V Gv=6dBRL=8,Ta=25oC 0.7 0.6 Power Dissipation[W] 0.5 0.4 0.3 0.2 0.1 0 0 0.5 1 Output Pow er[W] 1.5 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0
Pow er Dissipation vs Output Pow er(RL) V+=3V,Gv=6dB,Ta=25oC
Power Dissipation[W]
RL=4
RL=8
0.2
0.4 Output Pow er[W]
0.6
0.8
PSRR vs Frequency V+=3V,RL=4,Ta=25,RIN=GND 70 60 50
PSRR[dB]
Ta=85 o C
PSRR vs Frequency V+=5V,RL=8,Ta=25oC,RIN=GND 70 60
Ta=85 o C
50
PSRR[dB]
40 30 20 10 0 10 100
o
Ta=25 o C Ta=-40 C
40 Ta=25 30 20 10 0
Ta=-40 o C
1000 Frequency[Hz]
10000
100000
10
100
1000 Frequency[Hz]
10000
100000
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NJU7084
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sTYPICAL CHARACTERISTICS
2.5 Thermal Shutdow n Supply Current vs Temparature V+=3V RL=OPEN
3 2.5
Supply Current[mA]
Thermal Shutdow n Supply Current vs Temparature V+=5V RL=OPEN
2
Supply Current[mA]
2 1.5 1 0.5 0 140
1.5
1
0.5
0 140
150
160
170
180
190
200
150
160
170
180
190
200
Temparature[oC]
Temparature[oC]
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NJU7084
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sPACKAGE DIMENSIONS
VSP8
+0.3 2.9 -0.1 8 5
0 - 10
2.80.2
4.00.3
1
4 0.65
+0.1 0.127 -0.05
0.6MAX
0.1
0.20.1
0.1
M
+0.1 0.1 - 0.05
1.10.1
Unit:mm
0.550.2
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NJU7084
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sPACKAGE DIMENSIONS
DMP24
0 - 10
15.40.3 24 13
10.30.4
7.50.2
1 1.27 0.86MAX
12
+0.1 0.2 -0.05
0.1
0.400.1
0.12 M
0.150.1
2.30.15
Unit:mm
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0.80.2
NJU7084
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[CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.
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