NAU82011WG Datasheet Rev1.0

Page 1 of 16

Dec, 2012

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

W (4Ω @ 5V, 10% THD+N)

W (4Ω @ 5V, 1% THD+N)

W (8Ω @ 5V, 10% THD+N)

W (8Ω @ 5V, 1% THD+N)

RMS

Ω

W (4Ω @ 3.6V, 10% THD+N)

W (4Ω @ 3.6V, 1% THD+N)

Ω @ 3.6V, 10% THD+N)

Ω @ 3.6V, 1% THD+N)

Applications

VDD

VSS

Current / Thermal

Protection

VIN

Class D

Modulator

Output

Driver

VIP

NAU82011WG

EN

Click / Pop

Suppression

R1

R1

Figure 1: NAU82011WG Block Diagram