Global Mixed-mode Technology Inc.
G1442
2.6W Mono Audio Amplifier with Shutdown Mode
Features
Depop Circuitry Integrated
2.7V to 5.5V Operation
Output Power at 10% THD+N, VDD=5V
--2.6W (typical) into a 3Ω Load
Output Power at 1% THD+N, VDD=5V
--2W (typical) into a 4Ω Load
--1.3W (typical) into a 8Ω Load
Mono Bridge-Tied Load (BTL)
Shutdown Control Available
SOP-8, MSOP-8, SOP-8 (FD) and TDFN3X3-8
Package Available
General Description
The G1442 is a mono audio power amplifier in 8 pin
SOP-8, MSOP-8, SOP-8 (FD) or TDFN3X3-8 with
thermal pad package. It can drive 2W continuous RMS
power into 4Ω 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 con-
sumption applications, the SHDN mode is supported
to disable the G1442 when it is idle. The current con-
sumption can be further reduced to below 1µA.
Giving the
SHUTDOWN
pin low level will drive the
G1442 entering the shutdown.
Applications
PDAs
Portable Devices
Notebook
Ordering Information
ORDER
NUMBER
G1442P11U
G1442P81U
G1442F11U
G1442RD1D
G1442RD1U
Note:P1: SOP-8
P8: MSOP-8
1: Bonding Code
U & D: Tape & Reel
MARKING
G1442
G1442
G1442
1442
1442
F1: SOP-8 (FD)
TEMP.
RANGE
-40°C
to +85°C
-40°C
to +85°C
-40°C
to +85°C
-40°C
to +85°C
-40°C
to +85°C
RD: TDFN3X3-8
PACKAGE
(Green)
SOP-8
MSOP-8
SOP-8 (FD)
TDFN3X3-8
TDFN3X3-8
Pin Configuration
G1442
SHUTDOWN
BYPASS
IN+
IN-
1
2
3
4
8
7
6
5
VO2
GND
VDD
VO1
SHUTDOWN
BYPASS
IN+
IN-
1
2
3
4
G1442
8
Thermal
Pad
7
6
5
Top View
SOP-8 (FD)
VO2
GND
VDD
VO1
SHUTDOWN
BYPASS
IN+
IN-
1
2
3
4
G1442
8
Thermal
Pad
7
6
5
TDFN3X3-8
VO2
GND
VDD
VO1
SOP-8/MSOP-8
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
Ver: 1.5
May 21, 2009
TEL: 886-3-5788833
http://www.gmt.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
