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PDF NAU82011VG Data sheet ( Hoja de datos )
| Número de pieza | NAU82011VG | |
| Descripción | 3.1W Mono Filter-Free Class-D Audio Amplifier | |
| Fabricantes | nuvoton | |
| Logotipo |  |
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NAU82011VG
3.1W Mono Filter-Free Class-D Audio Amplifier
1 Description
The NAU82011VG is a mono high efficiency filter-free Class-D audio amplifier with variable gain, which is capable of
driving a 4Ω load with up to 3.1W output power. This device provides chip enable pin with extremely low standby
current and fast start-up time of 4ms.
The NAU82011VG is ideal for battery driven portable applications, as it has advanced features 91% efficiency, low
quiescent current (i.e. 1.25mA at 3.6V) and superior EMI performance. It has the ability to configure the inputs in either
single-ended or differential mode.
NAU82011VG is available in Miniature 9 ball WL-CSP (1.17mm x 1.19mm in 0.4mm pitch).
Key Features
Low Quiescent Current:
1.25mA at 3.6V
1.8mA at 5V
Powerful Mono Class-D Amplifier:
3.1W (4Ω @ 5V, 10% THD+N)
2.38W (4Ω @ 5V, 1% THD+N)
1.70W (8Ω @ 5V, 10% THD+N)
1.38W (8Ω @ 5V, 1% THD+N)
Low Output Noise: 20 µVRMS
Low Current Shutdown Mode
Integrated Image Reject Filter
Click-and- Pop Suppression
Integrated feedback resistor of 300 kΩ
1.17mm x 1.19mm WL-CSP (0.4mm Pitch)
1.61 W (4Ω @ 3.6V, 10% THD+N)
1.30 W (4Ω @ 3.6V, 1% THD+N)
0.85 W (8Ω @ 3.6V, 10% THD+N)
0.69 W (8Ω @ 3.6V, 1% THD+N)
Applications
Smartphones
Tablet PCs
Personal Navigation Devices
VIN R1
VIP R1
Class D
Modulator
Output
Driver
NAU82011VG
Click / Pop
Suppression
EN
Current / Thermal
Protection
VSS
Figure 1: NAU82011VG Block Diagram
VDD
NAU82011VG Datasheet Rev1.1
Page 1 of 17
Jan, 2013
1 page  
Test Set up
VDD
+
Audio Precision
Output
-
0.1uF
0.1uF
R1
R1
NAU82011VG
30kHz low pass
ZL RC filter
+
Audio Precision
Input
-
Note: The 30kHz low pass RC filter is implemented by using R= 1k Ohm and C = 4.7nF
NAU82011VG Datasheet Rev1.2
Page 5 of 17
Oct, 2015
5 Page 
7 Application Information
7.1 Application diagram
7.1.1 Single ended input configuration
VIN 0.1µF 150 kΩ
0.1µF 150 kΩ
VIP
Class D
Modulator
Output
Driver
Click / Pop
NAU82011 Suppression
VDD EN
7.1.2 Differential input configuration
Current / Thermal
Protection
VSS
VDD
0.1µF
10µF
VIN 0.1µF 150 kΩ
VIP 0.1µF 150 kΩ
Class D
Modulator
Output
Driver
Click / Pop
NAU82011 Suppression
VDD EN
Current / Thermal
Protection
VSS
VDD
0.1µF
10µF
NAU82011VG Datasheet Rev1.2
Page 11 of 17
Oct, 2015
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet NAU82011VG.PDF ] | |
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