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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
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
F1: SOP-8 (FD) RD: TDFN3X3-8
Pin Configuration
PACKAGE
(Green)
SOP-8
MSOP-8
SOP-8 (FD)
TDFN3X3-8
TDFN3X3-8
SHUTDOWN 1
BYPASS 2
IN+ 3
IN- 4
G1442
G1442
8 VO2
7 GND
6 VDD
5 VO1
SHUTDOWN 1
BYPASS 2
IN+ 3
IN- 4
Thermal
Pad
8 VO2
7 GND
6 VDD
5 VO1
SHUTDOWN 1
BYPASS 2
IN+ 3
IN- 4
G1442
Thermal
Pad
8 VO2
7 GND
6 VDD
5 VO1
SOP-8/MSOP-8
Top View
SOP-8 (FD)
TDFN3X3-8
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
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