Ver: 1.0

Nov 12, 2010

TEL: 886-3-5788833

http://www.gmt.com.tw

1

G1901

Global Mixed-mode Technology Inc.

2.4W Mono Class-D Audio Amplifier with Shutdown Mode

Features

Depop Circuitry Integrated

2.8V to 5.5V Operation

Output Power at 1% THD+N, VDD=5V

--2W (typical) into a 4

Ω Load

--1.2W (typical) into a 8

Ω Load

Mono Bridge-Tied Load (BTL)

Shutdown Control Available

MSOP-10 (FD), TDFN3X3-10 and WLCSP3X3-9

Package Available

Applications

PDAs

Mobile Phone

Portable Devices

Notebook

General Description

The G1901 is a mono class-D audio power amplifier in

MSOP-10 (FD), TDFN3X3-10 and WLCSP3X3-9 with

thermal pad package. It can drive 2W continuous RMS

power into 4

Ω load in Bridge-Tied Load (BTL) mode at

5V supply voltage. Its THD is smaller than 1% under

the above operation condition. For the low current

consumption applications, the SHDN mode is sup-

ported to disable the G1901 when it is idle. The cur-

rent consumption can be further reduced to below

1µA.

G1901 entering the shutdown.

Ordering Information

ORDER

NUMBER

MARKING

TEMP.

RANGE

PACKAGE

(Green)

G1901F61U

G1901

-40°C to +85°C

MSOP-10 (FD)

G1901RE1U

1901

-40°C to +85°C

TDFN3X3-10

G1901B91U

1901

-40°C to +85°C

WLCSP3X3-9

Note:F6: MSOP-10 (FD)

RE: TDFN3X3-10

B9: WLCSP3X3-9

1: Bonding Code

U: Tape & Reel

Pin Configuration

PVDD

VO-

PGND

VO+

SHUTDOWN

Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.

10

8

7

1

2

3

4

IN+

GND

VDD

NC

MSOP-10 (FD)

G1901

9

6

5IN-

Thermal

Pad

TDFN3X3-10

4

G1901

1

2

3

8

7

6

5

9

10

4

1

2

3

8

7

6

5

9

10

Thermal

Pad

PVDD

VO-

PGND

VO+

SHUTDOWN

IN+

GND

VDD

NC

IN-

G1901

Bottom View

WLCSP3X3-9

A3

A2

A1

B3

C3

B2

B1

C2

C1

VO-

GND

IN+

PGND

PVDD

VDD

VO+

SHUTDOWN

IN-

PVDD

VO-

PGND

VO+

SHUTDOWN

PVDD

VO-

PGND

VO+

SHUTDOWN

Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.

10

8

7

1

2

3

4

IN+

GND

VDD

NC

MSOP-10 (FD)

G1901

9

6

5IN-

Thermal

Pad

TDFN3X3-10

4

G1901

1

2

3

8

7

6

5

9

10

4

1

2

3

8

7

6

5

9

10

Thermal

Pad

PVDD

VO-

PGND

VO+

SHUTDOWN

IN+

GND

VDD

NC

IN-

G1901

Bottom View

WLCSP3X3-9

A3

A2

A1

B3

C3

B2

B1

C2

C1

VO-

GND

IN+

PGND

PVDD

VDD

VO+

SHUTDOWN

IN-