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PDF NJU72015 Data sheet ( Hoja de datos )
| Número de pieza | NJU72015 | |
| Descripción | 2Vrms Ground Referenced Stereo Line Amplifier | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU72015
2Vrms Ground Referenced Stereo Line Amplifier
GENERAL DESCRIPTION
The NJU72015 is an audio line Amplifier . It can swing
2Vrms (5.6V peak-to-peak) signal at 3.3V operating voltage.
Ground-referenced outputs eliminate output coupling
capacitor. It contains differential input.
The pop noise suppression circuit removes a pop noise at
the power-on and power-off.
PACKAGE OUTLINE
NJU72015V
APPLICATIONS
Audio applications requiring 2Vrms outputs
FEATURES
Operating Voltage
+3.0 to +3.6V
Operating Current
IDD=5mA typ.at V+=3.3V, No Signal, No Load
Output Coupling Capacitor-less
Differential Input
Pop Noise Suppression Circuit
C-MOS Technology
Package Outline
SSOP14
BLOCK DIAGRAM
PIN CONFIGURATION
1uF 10kΩ
+INL
1
+INR
14
10kΩ 1uF
1
1uF 10kΩ
20kΩ
-INL
2
20kΩ
-INR 13
10kΩ 1uF
14
20kΩ
20kΩ
3 OUTL
OUTR 12
A GND
4
V+
A ctiv e
Mute
MUTE
5
V-
6
1uF
CN
7
External Under UVP
Voltage Detector
11
Bias
Charge
Pump
DGND
10
V+
9
V+
CP
8
78
No. Symbol
Function
1 +INL Lch Noninverted Input
2 -INL Lch Inverted Input
3 OUTL Lch Output
4 GND Ground
5 MUTE Mute Control
6 V- V- Power Supply
7 CN Flying Capacitor Negative Terminal
1uF 8 CP Flying Capacitor Positive Terminal
9 V+ V+ Power Supply
10 DGND Ground
11 UVP Undervoltage Protection Input
12 OUTR Rch Output
13 -INR Rch Inverted Input
14 +INR Rch Noninverted Input
Ver.2.8E
–1–
1 page  
NJU72015
APPLICATION CIRCUIT
CIN RIN
CIN RIN
+INL
1
RFB
-INL
2
RFB
3 OUTL
AGND
4
V+
Active
Mute
MUTE
5
CV- V-
6
D1
CN
7
+INR
14
RFB
-INR 13
RFB
OUTR 12
RIN CIN
RIN CIN
External Under UVP
Voltage Detector
11
R13
DGND
Bias 10
R12
R11
Charge
Pump
V+
9
V+
1uF
CP
8
CFLY
*1) Connect a zener diode between V- terminal and GND terminal to prevent connecting V- terminal[6pin] and V+ terminal[9pin].
–5–
5 Page 
NJU72015
TYPICAL CHARACTERISTICS
IDD vs Supply Voltage
No Signal, No Load
10
8
6
4
2
0
0 1 23
Supply Voltage [V]
IDD vs Tempreature
No Signal, No Load
6
V+=3.6V
5
4
4
V+=3.0V
3
V+=3.3V
2
-50
-50
-55
-60
-65
-70
-75
-80
-85
-90
-50
0 50 100
Temperature [OC]
PSRR vs Tempreature
V+=3V to 3.6V
150
0 50 100
Temperature [OC]
150
IDD vs Supply Voltage
No Signal, No Load
6
VDD=0V to 3V
VDD=3V to 0V
4
85oC
2 -40/25oC
-40oC
85/105oC
105oC
0
2.5
25oC
2.6 2.7 2.8
Supply Voltage [V]
2.9
3
VSS vs Tempreature
No Signal, No Load
-2
-2.5
V+=3.0V
-3
V+=3.3V
-3.5
-4
-50
V+=3.6V
0 50 100
Temperature [OC]
150
PSRR vs Frequency
V+=3.3V, Vripple=100mVrms, RL=10kΩ, Bandpass
90
80 -40oC
70
25oC
60
50 85/105oC
40
30
20
10
0
10
100
1000
10000
100000
Frequency [Hz]
– 11 –
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet NJU72015.PDF ] | |
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