NAU82011WG Datasheet, PDF (1/16 Pages) List of Unclassifed Manufacturers – 2.9 W Mono Filter-Free Class-D Audio Amplifier

NAU82011WG
2.9 W Mono Filter-Free Class-D Audio Amplifier
1 Description
The NAU82011WG 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 2.9W output power. This device provides chip enable pin with extremely low standby
current and fast start-up time of 4ms.
The NAU82011WG is ideal for the portable applications of battery drive, as it has advanced features like 91% efficiency,
low quiescent current (i.e. 1.2mA at 3.6V) and superior EMI performance. It has the ability to configure the inputs in
either single-ended or differential mode.
NAU82011WG is available in MSOP-8 package.
Key Features
 Low Quiescent Current:
• 1.2mA at 3.6V
• 1.7mA at 5V
 Powerful Mono Class-D Amplifier:
• 2.9W (4Ω @ 5V, 10% THD+N)
• 2.3W (4Ω @ 5V, 1% THD+N)
• 1.7W (8Ω @ 5V, 10% THD+N)
• 1.38W (8Ω @ 5V, 1% THD+N)
 Low Output Noise: 20 µV_RMS
 Low Current Shutdown Mode
 Integrated Image Reject Filter
 Click-and Pop Suppression
 Integrated feedback resistor of 300 kΩ
• 1.48 W (4Ω @ 3.6V, 10% THD+N)
• 1.2 W (4Ω @ 3.6V, 1% THD+N)
• 0.88 W (8Ω @ 3.6V, 10% THD+N)
• 0.71 W (8Ω @ 3.6V, 1% THD+N)
Applications
 Smartphones
 Tablet PCs
 Personal Navigation Devices
VIN ^R1
VIP ^R1
Class D
Modulator
Click / Pop
Suppression
NAU82011WG
EN
Output
Driver
Current / Thermal
Protection
VSS
NAU82011WG Datasheet Rev1.0
Figure 1: NAU82011WG Block Diagram
Page 1 of 16
VDD
Dec, 2012